BEREA, Ohio -- The Cleveland Browns might be without defensive lineman Ahtyba Rubin for some time.

Coach Mike Pettine said Rubin went for a second opinion on an injured ankle. He has missed the last two games.

Pettine was asked if surgery could be a possibility.

“I would think all options are on the table at this point,” he said. “I haven’t heard that brought up yet, but I’m assuming that could be the case.”

The Browns will have an update on Rubin’s status Wednesday.

Rubin’s injury highlights one of the more disappointing position groups on the team. The defensive line was supposed to be a team strength. But the defense ranks last in the league in run defense, giving 155.5 yards per game. Not all of that falls on the line, but it is the first ‘line’ of defense.

In a separate personnel move, the team waived fullback Ray Agnew and promoted Kiero Small from the practice squad.

“He’s been doing an outstanding job for us on the scout teams,” Pettine said. “We just felt it was time to promote him and see what he can do.”

There was also word that Seattle was about to sign Small to the Seahawks' active roster, which teams can do with practice squad players.