Carolina Panthers starting left guard Damien Lewis will be sidelined a few weeks with a UCL injury in his elbow, sources told NFL Network's Mike Garafolo and Ian Rapoport on Tuesday.
A source classified Lewis' UCL injury as a tear to ESPN's Jeremy Fowler. Medical evaluations of Lewis' injury are ongoing.
Lewis will at least miss the Panthers' game Sunday night against the Detroit Lions.
The Panthers have a bye in Week 5 so there's a chance he might miss only one game.
Lewis was injured in the first half of Sunday's 21-18 loss to the Cleveland Browns, but he returned in the third quarter to finish out the game.
Lewis has been one of the Panthers' highest performing offensive linemen through three games, while left tackle Rasheed Walker, a free agent who was signed to a one-year deal in March, has had a challenging time in his three games played. Rookie Monroe Freeling has been manning the right-hand side.
The Panthers are dealing with several injuries, as top cornerback Jaycee Horn is out indefinitely after suffering a torn quad in Week 3's loss to the Browns. Longtime starting tackles Taylor Moton (blood clot) and Ikem Ekwonu (patellar tendon) are eligible to return from the non-football injury list and physically unable to perform list, respectively, following the bye.
ESPN's Mike Kaye contributed to this report.