The Phillies have a glut of starting pitching and a dearth of relief. Mick Abel will fill Walker’s starting spot Thursday in Toronto. The Phillies have four capable starters, plus the injured Aaron Nola, plus Abel, plus Andrew Painter once July arrives. That leaves no room for Walker.

The Phillies are restructuring their bullpen by removing Taijuan Walker from the rotation and recalling right-handed reliever Seth Johnson.

Walker moved back into the rotation when Aaron Nola hit the injured list on May 15, and he allowed four runs in four innings against the Brewers on Friday. His 3.62 ERA as a starter this year and the under-the-hood numbers are surprisingly solid,