Rookie Spencer Rattler will start at quarterback for the Saints against the Tampa Bay Buccaneers on Sunday, coach Dennis Allen said Wednesday, replacing an injured Derek Carr.

Carr suffered an oblique strain in Monday night’s loss to the Chiefs, according to Allen. He is considered week-to-week.

The Saints play two games in the 10 days — Sunday against Tampa Bay and then Oct. 17 against the Denver Broncos on “Thursday Night Football.”