|Report: Staley Suffers MCL Sprain|
by Chris Biderman of NinersDigest.com, December 2, 2013 at 4:22 pm ET
Joe Staley Profile
San Francisco 49ers Pro-Bowl left tackle Joe Staley suffered an MCL sprain to his right knee on the first offensive drive of their 23-13 win over St. Louis Sunday, as first reported by the Sacramento Bee.
The diagnosis should be considered a positive, given that it wasn't a more serious knee injury that would end his season. For now, Staley is considered week-to-week and was undergoing tests on his knee Monday morning.
Right guard Alex Boone slid over to replace Staley at left tackle, giving Joe Looney his first extended action at right guard since getting drafted in the fourth round of 2012. Jim Harbaugh elected to go with Looney over Daniel Kilgore, who had been active each game over the last two seasons while Looney was active for the first time earlier this year.
"He's been getting a lot of reps at guard. Daniel gets reps at guard and center and he was the backup center," Harbaugh said. "That was Joe's position, especially at that guard position."
"Joe Looney did a good job. He was confident. He went right at guys and thought he played very well. Both (Looney and Boone) were very good with their assignments."
NFC sack leader Robert Quinn lined up opposite Boone but didn't register a sack.
The 49ers came into the game with Mike Iupati out of action and finished with just two of their usual starters at their regular positions. With the Seattle Seahawks coming to town Sunday, San Francisco will practice with Looney at right guard and Boone back at his college position of left tackle with the starters this week.
There's a chance Iupati returns Sunday, which could move Snyder to to right guard, where he played with the 49ers in 2011, relegating Looney back to the bench. With Seattle's vaunted defense ahead, the 49ers' offensive line will be a big story all week.