Trey Yesavage looked right at home in his MLB debut with the Toronto Blue Jays.

The 22-year-old right-hander struck out nine batters over five innings of work against the Tampa Bay Rays on Monday to break the Blue Jays franchise record for most strikeouts in an MLB debut.

Yesavage allowed just one run on three hits and two walks before being replaced by Brendon Little in the bottom of the sixth after 69 pitches.

Along with his nine strikeouts, he induced 19 whiffs, 11 of which came on his splitter.

His 52.8 per cent whiff rate on Monday was the highest by any Blue Jays starting pitcher (debut or otherwise) since tracking began in 2009. It was also the highest by any MLB starting pitcher in a big league debut (both stats with a minimum of 60 pitches).

After giving up two hits to the fi

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