Andrew Luck sat out the Indianapolis Colts' first OTA practice with a calf strain.

Frank Reich told reporters after the session that Luck suffered the injury while training with the team.

“Just a little tweak; little strain,” Reich said of Luck’s calf. “So my whole mode — and our whole mode — is going to be during this session just to be real conservative with anybody who has any issue whatsoever.

“Where we’re at right now is we’ll just say, ‘Hey, play conservative this week. Nothing this week, and then we’ll re-evaluate it after this week and see where he is.’”