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Blue Jays: Getting to know Ty Southisene, one of the prospects acquired in the Kevin Gausman trade
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Photo credit: © Mark J. Rebilas-Imagn Images
Ryley Delaney
Aug 2, 2026, 21:50 EDTUpdated: Aug 2, 2026, 21:52 EDT
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The first domino for the Toronto Blue Jays fell on Sunday evening.
According to The Athletic’s Mitch Bannon and Ken Rosenthal, the Blue Jays have sent long-time ace Kevin Gausman to the Chicago Cubs for Ty Southisene and Brett Bateman. 
Southisene is ranked the highest of the two among most publications, ranking as the Cubs’ 13th-best prospect before the trade according to MLB Pipeline. Let’s get to know one of the two newest Blue Jays’ prospects.

Getting to know Ty Southisene

Southisene is a 21-year-old middle infielder who stands at 5’7”, 170 lbs. He was drafted out of high school by the Cubs in the 2024 MLB draft, making his debut the following season. Most of the year was spent with their Single-A team, where he slashed .244/.387/.276 for a 114 wRC+. He also walked (15.9%) more than he struck out (14.9%), but failed to hit a home run.
His numbers have improved in 2026, except for his home run total. Beginning the season in Single-A, Southisene slashed .267/.373/.372 with more walks than strikeouts in his 105 plate appearances, with three doubles and three triples. Since he was promoted to High-A, the 21-year-old is slashing .333/.459/.381 with a 14.4 BB% and 12.9 K%, as well as four doubles and two triples.
Southisene is still seeking his first career home run after 707 plate appearances. The underlying numbers aren’t particularly encouraging either, struggling to hit the ball with much impact, usually doing so in the ground (53.6 ground ball percentage in High-A). He’s a patient hitter who makes contact, but what grades did Pipeline give him?.
It’s not a shock that his power is graded at 20 by Pipeline, the lowest grade that can be given to a tool.  The Blue Jays love their hit-over-power type prospects, and Southisene can sure put the bat on the ball, given a 50 grade according to Pipeline. It’s one of four tools graded as average or above average, as he’s given a 55 run tool, as well as a 50 arm and 50 field tool.
Southisene is the older brother of Tate, who was selected in the first round of the 2025 draft. Tate is a top 100 prospect, while Ty ranks as Pipeline’s 13th-best Cubs prospect.
Dub Gleed, acquired shortly into the 2026 season, has a similar profile entering this season, but has gone on to hit 14 home runs this year, well up from his career-high of two in 2025. Maybe the Jays can unlock the same out of Southisene, but on the surface, this is an underwhelming return for Gausman.
Ryley Delaney is a Nation Network writer for Blue Jays Nation, Oilersnation, and FlamesNation. She can be followed on Twitter @Ryley__Delaney.
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