Mitchell Leff/Getty Images Demarcus Robinson, a veteran wide receiver who signed in the off-season with the San Francisco 49ers, is facing an NFL suspension after pleading no contest to misdemeanor DUI. The cloud hanging over Demarcus Robinson’s legal status has lifted a bit. The veteran wide receiver, who the San Francisco 49ers signed this off-season, pleaded no contest to a misdemeanor charge of driving under the influence and was sentenced to three years of probation and a nominal fine of $