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Steelers running back Le’Veon Bell knows he has 15 months of probation ahead of him because he was caught driving under the influence of marijuana. But neither Bell nor the Steelers knows what the NFL will do.

However, Steelers G.M. Kevin Colbert says the Steelers have to be prepared for the possibility that Bell will be suspended at the start of the 2015 season. Colbert said at his press conference on Wednesday that the Steelers will be prepared when or if Bell is suspended, according to Mark Kaboly of the Pittsburgh Tribune-Review.

That preparation won’t be easy because no running back in the NFL played a bigger role in his team’s offense than Bell last season. Bell had 1,361 rushing yards, 854 receiving yards and 11 total touchdowns last season, and after the Steelers cut LeGarrette Blount, Bell became the only option at running back.

But under the terms of the league’s new substance-abuse policy, Bell is expected to be suspended for the first two games of the 2015 season. That means the Steelers need a Plan B.