The 25-year-old set a franchise record by posting eight strikeouts in his MLB debut Sunday against the Detroit Tigers.
— Toronto Blue Jays (@BlueJays) March 31, 2019
Previously, the record was shared by Matthew Boyd and Marc Rzepczynski who both had seven.
Thornton pitched five innings, allowing just two hits, no runs and no errors. He threw 75 pitches, notching 47 strikes.