This is probably a career-first Cal Raleigh was hoping to avoid.

The Mariners’ All-Star catcher was placed on the 10-day injured list with a right oblique strain on Thursday, marking his maiden trip to the IL.

The “Big Dumper” exited Wednesday’s night’s walk-off loss to the Astros in the ninth inning after aggravating discomfort he’d experienced earlier in the month and caused him to miss three games.

Cal Raleigh #29 of the Seattle Mariners looks on during the eighth inning against the Houston Astros. Getty Images

The injury seemingly resurfaced as he backed up a relay throw in the eighth inning and became more apparent when he held off throwing to first on a would-be double play.

“Nobody wants to go on the IL, and especially not Cal,” Mariners manager Dan Wilson told reporters before Thursday’s game. “But I think at this point, I think it’s the smart thing to do and a chance for him to get that resolved and then be ready to go.…