Jonatan Clase initially signed with the Mariners as an international free agent in 2018, only earning $35,000 as a signing bonus, but he showcased he was worth much more than that. Clase started off his professional career hot, posting a 149 wRC+ with the Mariners' DSL team, before losing a year due to COVID. However, that didn't stop him from progressing, as he moved all the way to Double-A from Rookie ball in only three years. That included a 2023 season in which he stole 79 bases and hit 20 homers, showcasing his power-speed potential. He debuted in MLB last year after a solid performance in Triple-A, before getting sent back down after his first cup of coffee didn't go too well. The Jays then acquired Clase in a trade for setup man Yimi García, and he struggled in his short stint in Triple-A Buffalo before performing solidly in Toronto to end the year.

Early in 2025, Clase has had a strong start to the year, getting on base at a high clip and showing off his elite speed while also cutting down his strikeout rate slightly. He hasn't shown as much power as he usually does, with only four extra base hits on the year (and no homers), but if he continues to get on base at this rate, his speed can turn singles into doubles. The switch-hitting outfielder has displayed strong contact skills on the season to pair with good plate discipline. He also has an 86.2% zone-contact rate while not chasing much. Defensively, he's still a work in progress, as although his speed can make up for some bad routes, he still does struggle a bit with his reads and jumps. Atkins has called him MLB-ready, and he is in his final option year, so he'll need to establish himself as a contributor to the major league team by the end of the season. Still, the tools and skill set are there for Clase, and despite a crowded outfield, he has a good chance to earn a role.