OAKLAND, CALIF. ? Raiders linebacker Bill Romanowski could be contemplating retirement after missing the first game of his 16-season NFL career Sunday because of a series of concussions.

Romanowski had played in 243 consecutive games — the fifth-longest streak among active players at the start of the season. He had started 131 straight games, but was scratched for the Raiders’ 34-31 overtime victory over the San Diego Chargers.

“I’m evaluating the situation, that’s all I can say,” Romanowski said after the game. “I’ve had a few concussions this season, and it’s something to be alarmed about. Otherwise, I would have been out there.”

Romanowski got a concussion in the Raiders’ season opener against Tennessee, but he played in two more games before team doctors held him out of Sunday’s game.