Blue Jays promote Sean Keys to Buffalo after strong Eastern League run

Sean Keys turned a hot start in New Hampshire into a ticket to Buffalo. After earning Eastern League Player of the Week honors on April 20 by going 9-for-16 with two doubles, three homers and nine RBIs, the 23-year-old kept driving the ball well enough to make the Blue Jays move him up on June 5.

Keys left the Fisher Cats with a line that screamed promotion: .285 batting average, .411 on-base percentage, 14 home runs and 23 extra-base hits in 49 games. He led New Hampshire in homers and extra-base hits, and those power numbers sat near the top of the Eastern League leaderboard. Just as important, he did it while handling first base, third base and designated hitter duties, giving Toronto a bat that could fit in more than one place.

That versatility is part of what made Keys a fast-rising name in the system. Toronto took him in the fourth round of the 2024 MLB Draft, 125th overall out of Bucknell, and signed him for about $569,700. At Bucknell in 2024, Keys hit .405/.535/.798 with 13 home runs and won Patriot League Player of the Year, a run that made him one of the most productive college hitters in the country and the first Bucknell player to hit above .400 in 18 years.

The climb since then has been steady and loud. Keys opened his pro career with 22 games at Dunedin in 2024 and drove in 20 runs. He followed that with a full season at Vancouver in 2025, batting .286 with 19 home runs and 72 RBIs over 119 games. MLB Pipeline lists him as Toronto’s No. 15 prospect, a left-handed hitter and right-handed thrower at 6-foot-1 and 232 pounds, with a major-league ETA around 2027.

Buffalo now becomes the key proving ground. Under Casey Candaele, who returned for a franchise-record sixth season as Bisons manager, Keys will see more advanced pitching and a sharper demand for consistency at the plate. The Blue Jays are not just rewarding a strong Eastern League run here; they are putting a bat with real traction into the next test before he becomes a more serious big-league option.