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Running back C.J. Spiller left the Buffalo Bills’ game against the Cleveland Browns with a shoulder injury, but it does not appear to be serious and fantasy owners should not panic.

Mark Ludwiczak of CBSSports.com reported that Bills head coach Chan Gailey does not expect Spiller to miss significant time.

While Spiller was clearly in significant pain after going down, the injury he sustained is not guaranteed to keep him out for more than one game.

With that being said, Fred Jackson could be back from his injury by the time Spiller returns, which could cause further concern over his future production. Jackson was the starting running back for the Bills to begin the season.

This is another reason why fantasy owners shouldn't worry about Spiller. After being selected in the first round of the 2010 draft out of Clemson, the Bills have been waiting for Spiller to emerge as an explosive playmaker.

That started to happen at the end of last season, and the trend has continued into 2012. Spiller had a touchdown in four of the Bills’ final five games in 2011, and topped 100 yards rushing for the first time in Week 16.

This season, Spiller took over the primary rushing duties for Jackson when he was injured in Week 1, and exploded on the New York Jets defense. He gained 169 yards on 14 carries and scored a touchdown.

The next week, he racked up 123 yards on 15 carries and made his way into the end zone twice against the Kansas City Chiefs. These were the two best performances of Spiller's career.

Before leaving the game against the Browns, he made his mark in the passing game with two catches for 42 yards and a touchdown.

Spiller has shown the ability to be the all-purpose back that the Bills desperately hoped he would be when they drafted him. When he returns from injury, he will be a focal point of the offense, even if Jackson is healthy and available.

Fantasy owners who have Spiller on their roster will have to be patient until he returns to the field. Once he is healthy, he will continue to be a fantasy football stud.