The Mets will activate Mike Baxter from the 15-day disabled list in time for tomorrow night’s game against the Giants in San Francisco.

Baxter has been on the disabled list since June 1 after displacing his collarbone and breaking his rib cartilage on a catch against the left field wall to preserve Johan Santana’s no-hitter.

To make room for Baxter on the active roster, the Mets will option Kirk Nieuwenhuis to Triple-A Buffalo.

In 91 games this season, Nieuwenhuis is hitting .252 with seven home runs and 28 RBI in 282 at-bats.

However, Nieuwenhuis is just 4-for-38 with 18 strikeouts in 16 games during July, and just 24 for his last 122 with eight walks and 44 strikeouts since June 1.