MIAMI — Giancarlo Stanton’s season is not over after all, and the Miami Marlins hope getting their slugger back provides a much-needed boost to their fading postseason chances.

The Marlins reinstated the Home Run Derby champion from the disabled list Tuesday, barely three weeks after his season was thought to be over because of a badly strained groin.

Manager Don Mattingly said all that Stanton will be able to do for now is pinch hit, and on Tuesday he did just that in a 4-3 loss to the Phillies, singling in the fifth inning before being replaced by a pinch runner.

TIGERS: Right-hander Jordan Zimmermann was activated from the disabled list and is scheduled to start Saturday against the Baltimore Orioles.

Zimmermann left Washington as a free agent and signed a $110 million, five-year deal with the Tigers during the offseason. He was 5-0 with a 0.55 ERA after five April starts but has struggled since and gone on the DL twice because of neck pain.

Zimmermann gave up two home runs in a rehab start for Triple-A Toledo on Monday, throwing 80 pitches.

CUBS: Right-hander Hector Rondon was activated from the disabled list and outfielder Albert Almora Jr. and infielder Munenori Kawasaki rejoined Chicago from Triple-A Iowa.

METS: New York called up right-hander Rafael Montero from Triple-A Las Vegas to start against the Cincinnati Reds in the second game of their series.

MARLINS: Miami activated first baseman Justin Bour from the 60-day disabled list, putting him in position to play for the first time since July 2. Bour has been sidelined with an ankle injury. He was batting .268 with 15 home runs and 46 RBI when he was hurt.

PADRES: San Diego activated outfielder Jon Jay from the 60-day disabled list.

Jay had been out since June 20 with a right forearm fracture.