According to ESPN, the team initially feared the injury was more serious.
MORE: David Steele’s Week 2 picks | Vinnie Iyer’s Week 2 picks
Bulaga, who missed a game last season after injuring his left knee, will undergo tests Friday to reveal the grade of his sprain.
UPDATE: Albert Breer of NFL.com reported the severity of Bulaga’s injury, which did in the end require surgery.
Bulaga, who received a new five-year, $33.75 million contract earlier this year, has been wearing a brace on his left knee ever since he missed the 2013 season after tearing his left ACL.
As he did in 2013, Don Barclay will fill in for Bulaga on Sunday.
