Bulaga underwent surgery on Saturday to repair a torn meniscus in his left knee, according to NFL Media Insider Ian Rapoport and NFL Media's Albert Breer, via two sources informed of the situation. Bulaga also sprained his MCL and is likely to be out the next six weeks, Rapoport and Breer reported.
The team's official website listed Don Barclay, a 2012 undrafted free agent, as Bulaga's likely replacement. Barclay had 18 starts over the past four years, mostly at right guard.
Other notable names on this week's injury report for Sunday's games: