Grube signed a minor league contract with Toronto on Monday, Shi Davidi of Sportsnet reports.
Grube is an unlikely candidate to make the big league squad, but part of the deal includes an invite to spring training. The 35-year-old posted a 3.92 ERA in 26 minor league outings in 2016. Grube, a righty, has logged just 0.2 major league innings (back in 2014 with the Angels).