Elias Díaz exiting Game 161 with discomfort in his left oblique has at least forced the Padres to scramble contingencies into place for the postseason.

But perhaps adding Luis Campusano to the taxi squad on Sunday and not immediately activating him was a clue that Díaz dodged a significant injury.

So was this: Díaz warmed up JP Sears while Freddy Fermin got his gear on before the start of the second inning. Fermin played all nine innings of the Padres’ 12-4 win over the Diamondbacks in the regular season finale, but questions about Díaz’s availability made it necessary to have a third catcher at least along for the ride to Chicago.

Campusano had a locker in the home clubhouse at Petco Park but he had not arrived by the time doors were closed to reporters Sunday morning.

Named a Pacific

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