The Ravens will be without starting rookie left guard Alex Lewis for about six weeks, Head Coach John Harbaugh announced Monday.
Lewis suffered a high ankle sprain in Thursday night's 28-7 win over the Cleveland Browns.
The good news was that X-rays showed he didn't have a broken bone, which was feared when he left the game on a cart with his leg in an air cast.
The bad news is that six weeks means he isn't projected to return until Week 16 against the Pittsburgh Steelers.
"That's usually about a six-week injury," Harbaugh said.
John Urschel will likely be Lewis' replacement. Urschel stepped in at left guard after Lewis went down, and started three games earlier this year when Lewis had to bump out to left tackle to fill in for injured rookie Ronnie Stanley.
The Ravens now have just one Week 1 starting offensive lineman, center Jeremy Zuttah, who hasn't missed games due to injury. Zuttah went to the sideline for part of the second half of the Browns game Thursday night, but returned to finish the game.
Lewis, a fourth-round pick out of Nebraska, has had a solid rookie season so far. His best game, according to Pro Football Focus, was against the Steelers when he posted a plus-4.3 grade upon returning back to left guard.
Harbaugh gave no update on the status of right guard Marshal Yanda (shoulder), who missed his third game in the past four weeks on Thursday night.