Topa was assigned to the triple-A Buffalo Bisons.
The 35-year-old opened the season with the Minnesota Twins, appearing in 23 games with an 8.05 ERA before being released on May 23.
Topa, a right-hander from Binghamton, N.Y., has pitched in MLB since 2020 with the Milwaukee Brewers, Seattle Mariners and Twins. He holds a career 4.27 ERA across 172 appearances (one start) with nine saves.
The Blue Jays’ pitching staff is battling injuries with the likes of starters Max Scherzer, Dylan Cease and Shane Bieber on IL, alongside relievers Yimi Garcia, Joe Mantiply and Tommy Nance.
