Manager Pete Mackanin said Alvarez will start Sunday against Oakland, Jim Salisbury of CSN Philadelphia reports.

EDGE Analysis

The Phillies are transitioning to a six-man rotation for the remainder of the season in order to get a look at Alvarez and to cut down on the innings of their other starters. Alvarez made his last appearance in the majors in 2015 with the Marlins. His fastball's been clocked as high as 98 mph this season, so the Phillies will give him some starts to see if he can be an option to compete for a rotation spot next spring.