The Blue Jays will be Font's third team this season. The 29-year-old started the campaign with the Tampa Bay Rays before being traded to the Mets in mid-May.
This won't be the first time Font has been a member of Toronto's organization, as he spent parts of 2016 with Double-A New Hampshire and Triple-A Buffalo.
Font has accrued a 5.20 ERA in 45 innings (three starts) in 2019 for the Rays and Mets. He's also pitched for the Los Angeles Dodgers, Oakland Athletics, and Texas Rangers in his career, throwing 96 innings since making his MLB debut in 2012.