Spiller had the surgery in Pensacola, Fla., and is expected back in time for the first game of the regular season, reports Schefter. The report comes after photos surfaced of Spiller in Pensacola with crutches. The city is home of sports surgeon Dr. James Andrews.
Spiller has been limited at times in training camp and even missed a practice. He did not play in the Saints' first preseason game Thursday.
New Orleans signed Spiller in March after he spent the first five seasons of his career with the Buffalo Bills.
Spiller played only nine games last season, running the ball 78 times for 300 yards. He also caught 19 passes for 125 yards.
In his career, Spiller has rushed for 3,315 yards on 5.0 yards per carry. He also has 158 catches for 1,195 yards.