The Tennessee Titans are set to host the Indianapolis Colts on Sunday afternoon in Nashville.

And the Titans still aren’t sure which quarterback will be starting for the Colts.

Will it be Carson Wentz, who sprained both ankles in the Colts’ loss to the Los Angeles Rams in week two? Or will it be one of Indy’s backup quarterbacks — Jacob Eason or Brett Hundley?

Early in the week, the possibility of Wentz playing looked unlikely.

Wentz, however, practiced for the first time this week on Friday.

“I’m very surprised that we’re even at this point to be honest with you,” said Colts head coach Frank Reich on Friday (via ESPN). “Monday and Tuesday were pretty bad. Monday thought zero chance, Tuesday I thought there was a glimmer of a hope.”

If Wentz does manage to play on Sunday, the Colts’ playbook will likely be altered to cater to Wentz’s limited mobility.

“Based on what I saw [on Friday at practice], probably not,” said Reich when asked about Wentz running Indy’s typical offense.

“Like I said, we have to see how [Wentz feels] and we have to decide should we do that,” added Reich. “Is that right for the team? If he can’t function and play his game, what’s best for him and what’s best for the team? That’s ultimately what will guide the decision.”

Tennessee and Indy kickoff at 12:00 PM CT on Sunday.

Featured image via Twitter/Christine Tannous/IndyStar via Imagn Content Services