49ers sign Khalid Kareem as Sam Okuayinonu moves to injured reserve

The San Francisco 49ers added defensive lineman Khalid Kareem to the roster on a one-year contract Friday. To create a spot for the 28-year-old, the team placed defensive lineman Sam Okuayinonu on injured reserve following a foot injury sustained during the final practice before the team's season opener in Australia. Kareem brings prior familiarity with defensive coordinator Raheem Morris from their shared time with the Atlanta Falcons. The 49ers face significant depth concerns on the defensive line entering the regular season. Both Nick Bosa and Romello Height are currently managing injuries, leaving the team thin on the edges. Okuayinonu, who serves as a versatile rotational piece, will be eligible to return from injured reserve later in the season if his recovery progresses according to team medical staff requirements.

• 1:20 AMYahoo Sports — 49ers officially sign veteran DE, place another DE on IR