Should we be surprised the San Francisco 49ers plan to play star pass-rusher Aldon Smith on Sunday at home against Indianapolis?San Francisco coach Jim Harbaugh said Friday he expects Smith to play. Smith was arrested Friday morning on suspicion of driving under the influence and marijuana possession. He was booked into county jail. He posted bail in time to practice with the team Friday. It is Smith's second arrest for DUI and he's had other legal issues since being drafted No.