The Athletics announced on Monday that they selected the contract of outfielder prospect Colby Thomas from Triple-A Las Vegas. Thomas, the team's No. 2 prospect per MLB Pipeline, gets the call to the big leagues for the first time after hitting .297 (92-for-310) with 17 home runs, 21 doubles, two triples, 70 RBI, 63 runs scored and seven stolen bases in 76 games for the Aviators this year. The 24-year-old former third-rounder in 2022 out of Mercer University has raw power that could play immediately for those searching for outfield depth in deep-mixed and AL-only leagues, although he might be in more of a platoon role in his first taste of the big leagues. Over a full season, Thomas certainly has 20-plus-homer upside while also giving fantasy managers the potential four double-digit stolen bases. He's also capable of playing anywhere in the outfield, giving him a better avenue for regular playing time.

Athletics outfield prospect Colby Thomas went 3-for-3 with a home run and three RBI in Wednesday's 7-1 win against Triple-A Sugar Land. Thomas clubbed his 17th home run, which ranks second among hitters at Triple-A. The 24-year-old has been hot in June, slashing .379/.389/.652 with five homers, three steals, and 21 RBI in 66 at-bats. A slight concern for Thomas would be his lack of walks and an elevated strikeout rate, but he has an intriguing blend of power and speed. Plus, he has a favorable home ballpark to play half his games in when he is eventually called up, which should come sometime this summer. He would be a solid speculative add at that time.

Athletics outfield prospect Colby Thomas continues to swing a hot bat at Triple-A and is quickly approaching his MLB debut. Over his past 12 contests, Thomas has posted an impressive .375/.397/.714 slash line with four doubles, five home runs, and a stolen base. Through 61 total games with Triple-A Las Vegas, the No. 2-ranked prospect in the system has held a .301/.361/.568 line with 17 doubles, two triples, 16 home runs, and three stolen bases. During his first taste of Triple-A last season, Thomas was also just as productive, holding a .272/.344/.559 line across a 73-game stint. Fantasy managers should consider him a strong stash option going forward. Even though the Athletics do not have a spot in the lineup for him, his elite power upside is worth rostering.

Athletics outfield prospect Colby Thomas had a big day at the plate on Tuesday for Triple-A Las Vegas, going 4-for-4 with a double, a home run, three RBI, and two runs scored. It was the 24-year-old's third home run in the last four games and 14th of the season. Now with 47 RBI, the right-handed slugger is the Pacific Coast League leader in that category. The former third-round draft pick is coming off a 31-home-run, 92-RBI season last year, and with 105 games under his belt now at Triple-A with a combined .282 BA between '24 and '25 at that level, he looks just about ready to take the next step. A high 26.8 percent strikeout rate is a bit of a concern, but a decent walk rate and loads of power could be enough to offset that, and the Athletics' second-ranked prospect should be up in the big leagues by the All-Star break. Power-needy managers in deeper and AL-only leagues should consider stashing him ahead of his eventual call-up.

Athletics outfield prospect Colby Thomas went 2-for-4 with a home run and four RBI in a blowout 16-3 win over Triple-A Sugar Land. The 24-year-old now has seven homers and a monstrous 1.064 OPS in May. His seven homers are the second most among Triple-A hitters in the month. There are some concerns, though, as he's prone to swinging and missing and has below-average walk rates during his time in the minors. However, Thomas still has plenty of intrigue, and his big-league opportunity could arrive soon. His combination of power and speed, paired with a hitter-friendly home ballpark, makes him a player to watch.

Athletics outfield prospect Colby Thomas is the latest A's prospect hurtling towards the major leagues after he registered two home runs and a double in a 3-for-6 day at the plate on Tuesday for Triple-A Las Vegas. The 24-year-old also collected two RBI and three runs scored in the contest. Over the last seven games, the Athletics' second-ranked prospect has tallied five multi-hit efforts, pushing his season-long slash line to .305/.370/.557 with seven home runs, 25 RBI, 27 runs scored, and two stolen bases. The former third-round draft pick hasn't hit less than .272 at any level since his ascension from Single-A back in 2023, and last season he belted 31 home runs in 132 games between Double and Triple-A. The right-handed slugger looks to be on track for a mid-season call-up, and those looking for a power boost should consider him as he'll be playing in a formidable A's lineup in addition to calling hitter-friendly Sutter Health Park home when not on the road.

Athletics outfield prospect Colby Thomas stayed hot at the plate on Friday evening. During their contest against Triple-A Tacoma, Thomas went 2-for-3 with a home run. This outing extended his hitting streak to four games. During this stretch, Thomas has gone deep twice and posted three multi-hit games, including a three-hit game on April 30. Before this surge, Thomas held a modest .208/.240/.292 slash line over his last five contests. After spending most of the 2024 campaign with Triple-A Las Vegas, Thomas has looked quite comfortable at this level early in the 2025 campaign. Through his first 29 contests, Thomas has posted a .299/.371/.504 slash line with seven doubles and five home runs. Fantasy managers should continue to monitor the 24-year-old's progression as he should be in the mix to make his MLB debut in the coming months.

Athletics outfield prospect Colby Thomas has had a solid start to the Triple-A campaign, slashing .276/.364/.460 with three home runs, 13 RBI, 16 runs scored, and two stolen bases through 22 games. The former third-round draft pickhas been swinging the bat particularly well over the last 10 contests, going 13-for-44 (.295), so he could be the next big prospect call-up for the A's in the coming months. Their second-ranked prospect showed well at Triple-A last season as well, slashing .272/.344/.559 with 17 home runs in 73 games (14 at Double-AA, too), and appears to be ready to make the next jump. Managers in AL-only leagues in need of a power boost could consider stashing the 24-year-old ahead of his eventual call-up, which is likely to happen around midseason.

Athletics outfield prospect Colby Thomas has been off to an impressive start to the Triple-A regular season. On Tuesday, Thomas enjoyed his best outing of the campaign as he tallied three hits, including a home run and a triple. This was his first three-hit game of the season. Through the first nine games of the campaign, Thomas has held a .314/.400/.600 slash line with two doubles, one triple, and two round-trippers. Last summer, Thomas spent 73 games with Triple-A Las Vegas and posted a strong .272/.344/.559 slash line with 25 doubles and 17 home runs. Fantasy managers should continue to monitor his progression as he should be in the mix for an early-season MLB debut. He is worth stashing in AL-only formats as he may only need another few weeks with Triple-A.

Athletics outfield prospect Colby Thomas has gone 3-for-9 at the plate with a home run and two RBI across his first three games of the Triple-A regular season. He has tallied at least one hit in each game and has held a 3:3 BB:K. The Mercer product was in the mix for a spot on the Opening Day roster during camp, but instead, the Athletics opted for him to continue his development in the minor leagues. Last summer, Thomas split his season between Double-A and Triple-A. In 59 games at Double-A, Thomas posted a .282/.340/.568 line with 19 doubles and 14 home runs. Then, across his first 73 games with Triple-A Las Vegas, the 24-year-old posted a .272/.344/.559 line. Fantasy managers in deeper formats should continue to monitor his progression as he could push for an early-season MLB debut.

Athletics outfield prospect Colby Thomas (knee) returned to Cactus League action this weekend. Last week, Thomas suffered a knee injury after being hit by a line drive. However, after sitting out for a few days, Thomas was cleared to return. The Mercer product was competing for a spot on the Opening Day roster but was previously assigned to minor-league camp. Through 16 games this spring, Thomas has posted a .182/.379/.364 slash line with a 5:6 BB:K and one stolen base. The former third-round selection is considered the No. 7-ranked prospect in the system on MLB.com. Last season, Thomas began the campaign at Double-A and eventually made his Triple-A debut. At the top level of the minor leagues, Thomas posted an impressive .272/.344/.559 slash line across 73 contests. If he continues this production at Triple-A, he should push for a relatively early 2025 MLB debut.

The X-rays came back negative on Athletics outfield prospect Colby Thomas (knee). Thomas exited Saturday's spring training contest early after being struck by a line drive while at third base. Fantasy managers should continue to monitor his status, but it appears that this injury is not overly serious. However, the team may keep Thomas sidelined for a few games out of precaution. Thomas is considered one of the top prospects in the Athletics system. Last season, the Mercer production opened the campaign by making his Double-A debut. Across 59 games, he held a strong .282/.340/.568 line. He was then promoted to Triple-A Las Vegas where he posted a .272/.344/.559 slash line. Fantasy managers should expect Thomas to open the 2025 campaign at Triple-A but he should be in the mix for an early-season MLB debut given his success at Triple-A last summer.

Athletics outfield prospect Colby Thomas (knee) exited Saturday's contest after being hit by a hard liner in his right knee. Thomas needed help from a trainer to leave the game. Fantasy managers should continue to monitor his status as the team will likely provide an update after he goes through testing. Thomas is considered the No. 3 prospect in their system on MLB.com. Last season, Thomas opened the season by making his Double-A debut. Across 59 contests, he held a .282/.340/.568 slash line with 19 doubles and 14 home runs. He was then promoted to Triple-A where he held a similar .272/.344/.559 line with 25 doubles and 17 round-trippers. Given his success at Triple-A last summer, the Mercer product will likely be in the mix for an early MLB debut during the 2025 campaign.