San Francisco 49ers linebacker Reuben Foster cleared another legal hurdle on Friday when a marijuana possession charge against him in Alabama was dropped.The District Attorney’s office in Tuscaloosa (Ala.) dismissed the misdemeanor charge after Foster completed a diversion course there, the Sacramento Bee reported.Earlier this week, Foster was cleared of two felony domestic violence charges when a judge in San Jose, Calif., ruled that there was insufficient evidence to proceed to trial.That cleared the way for the second-year linebacker to join the 49ers at organized team activities on Thursday. It marked the first time Foster was with the team since the felony charges were filed against him in April.Foster still faces an illegal firearms misdemeanor charge. The pre-trial date is June 6.The felony charges were dropped six days after Foster’s former girlfriend, Elissa Ennis, testified that she lied about the linebacker assaulting her on Feb. 11.Foster could still face league discipline under the league’s personal conduct policy. He also could be subject to league discipline under the substance-abuse policy, even though the marijuana charge was dropped.