The Indians have activated Yan Gomes from the 7-day disabled list, where he's been since taking a deflected pitch of his catcher's mask last Thursday against Minnesota. Chris Gimenez was placed on the paternity list to make room for Gomes on the roster (you'll be forgiven if you weren't aware Gimenez was on the roster in the first place, given that he didn't actually play at all).
Gomes is having a fantastic season, batting .284/.324/.477, with 21 doubles and 17 home runs. After a rough April defensively, he's been playing really well again behind the plate for months now. All things considered, he's the best catcher in the American League, and so it will be a nice boost to have him back in the lineup. Gomes will start and bat 6th in tonight's series opener against Kansas City.
A return trip to the playoffs will require a lot of things going right during the final month of the regular season. Having the team's best players healthy helps improve the chances of those things going right.