The Blue Jays optioned Baker to Triple-A Buffalo on Wednesday.
EDGE Analysis
Baker joined Toronto when the roster expanded from 26 to 28 men Sept. 1, but he'll head back to the minors less than a week later after the Blue Jays needed to open up a spot for reliever Julian Merryweather (oblique), who was reinstated from the 60-day injured list. During his first stint in the big leagues, Baker made one appearance out of the bullpen, striking out a batter in a scoreless inning.