Perez isn't in the lineup Thursday for Game 4 of the ALDS against Cleveland.
Perez is absent from the lineup Wednesday for Game 2 of the American League Wild Card Series against the Astros.
The Tigers activated Perez (oblique) from the 10-day injured list Thursday, Evan Petzold of the Detroit Free Press reports.
Perez (oblique) will begin a rehab assignment with Triple-A Toledo on Monday, Evan Woodbery of MLive.com reports.
Perez (oblique) is completing all baseball activities and is scheduled to hit in a live batting practice session Saturday, Cody Stavenhagen of The Athletic reports.
Perez (oblique) began a running progression Friday, Evan Petzold of the Detroit Free Press reports.
Perez (oblique) is expected to begin a hitting progression this week, Evan Petzold of the Detroit Free Press reports.
Tigers manager A.J. Hinch acknowledged Saturday that Perez is uncertain to play again this season after landing on the 10-day injured list with a left oblique strain, Evan Petzold of the Detroit Free Press reports. "I'm just bummed for him," Hinch said of Perez. "I don't know how long it's going to be or what we can salvage from the season. We'll do our best to get him healthy and hopefully get him back in some games before the end of the year."
The Tigers placed Perez on the 10-day injured list Saturday with a left oblique strain.
Perez is out of the lineup for Monday's game against the Guardians.