“The 49ers are aware of the recent matter involving Al Netter,” the 49ers said in a statement. Niners offensive lineman Al Netter, who spent his rookie season on the practice squad in 2012, was arrested on suspicion of driving under the influence Wednesday in San Jose, the Santa Rosa Press Democrat reported. According to the Santa Rosa Press Democrat, Netter was arrested Wednesday, and cited for having a blood alcohol content above .08. Reserve defensive lineman Demarcus Dobbs was arrested on charges of DUI and marijuana possession in November. The Niners also signed linebacker Clark Haggans in September knowing he could be suspended for a 2011 DUI - the NFL later made him sit out three games. “We take these issues very seriously, but will reserve comment at this time as this is an ongoing legal matter.