The Boston Red Sox are still undefeated in the postseason in games where Nathan Eovaldi has made an appearance. The latest was in Game 2 of the 2021 American League Championship Series in which Eovaldi didn't really look as good as he was in his past couple of starts in the playoffs.

Eovaldi went 5.1 innings long in Game 2, which was par for the course for him, and surrendered three earned runs on five hits. He fanned three hitters and issued a free pass. Fortunately for the Red Sox's right-hander, Enrique Hernandez and Boston's offense gave him ample run support to work with. Following the game, Eovaldi spoke with reporters and revealed an issue he had to deal with while he was on the mound that likely had impacted the way he tossed the ball.

Per John Morosi of the MLB Network:

Eovaldi said he felt a “grab” in his back when he extended his stride on one pitch. He said it’s something he’s experienced before and hopes to be available out of the bullpen as soon as Game 3.

Should Eovaldi's shoulder flares up, don't expect the Red Sox to use him in Game 3 as a reliever, though it doesn't seem it's serious enough to be a long-term problem. It's still something worth keeping a close eye on, especially since the Astros require the best out of Boston's pitching staff.