Johan Santana won’t be around his teammates Saturday to celebrate the one-year anniversary of the only no-hitter in Mets history, but the date isn’t lost on manager Terry Collins.

Santana’s no-no against the Cardinals — in which the lefty, coming off shoulder surgery, threw 134 pitches — is something of a bittersweet memory for Collins.

“I was ill, sicker than hell,” Collins said before Friday night’s 5-1 loss to the Marlins, referring to the stress he felt in the late innings as he grappled with leaving Santana in the game. “I was sick to my stomach.”

Whether Santana’s pitch count led to him re-tearing the anterior capsule in his shoulder — the lefty had season-ending surgery during spring training — is open to debate. But Collins said he hasn’t second-guessed leaving Santana in the game.

Mike Baxter will also never forget that night at Citi Field. Baxter made a circus catch at the left-field wall to preserve the no-hitter, but sustained a displaced right collarbone and rib cage injury that cost him the next two months.

“I’m thankful that [Santana] made it so memorable by having such a performance,” Baxter said. “The reality of playing is you’re going to get hurt at some point, but I guess to get hurt during a game like that just makes it memorable.”