AP

The new substance-abuse policy imposes a two-game suspension for a first-offense DUI. By landing on probation for a July 2014 DUI arrest arising from marijuana use, Steelers running back Le’Veon Bell is expected to be suspended for two games.

But there’s a catch that could result in a doubling of Bell’s expected punishment. The new substance-abuse policy makes a two-game suspension the standard penalty for a DUI arising from alcohol use. For violations of the law involving other substances of abuse, a first offense exposes the player to a suspension of “up to four” games.

It’s unclear whether the NFL will give Bell, who becomes the test case for the new substance-abuse policy, four games, three, two, or fewer. The prior substance-abuse policy also exposed players to a suspension without pay of “up to four” games for violations of the law for substances other than alcohol. Still, it would be a surprise if Bell gets less for DUI-marijuana under the new policy than he would get for DUI-alcohol under the new policy.

But don’t be surprised if he gets more, especially since alcohol is legal in Pennsylvania and marijuana currently isn’t.

Either way, the Steelers need to have a solid plan in place for replacing the team’s workhorse tailback for at least two and as many as four regular-season games in 2015.