Benson surrendered to authorities at Travis County Jail in Austin, Texas, late Tuesday to begin serving his sentence. Attorneys from both sides said that, with good behavior, Benson's time could be reduced to seven days. According to lawyer Sam Bassett, Benson received additional credit for work in jail.
"Mr. Benson was released from jail today, having served his sentence," Bassett said in the statement. "Mr. Benson was credited for his full jail sentence pursuant to policies which apply to every inmate sentenced for a misdemeanor. He worked while in the jail, mopping floors and assisting the paint crews. He received additional credit because of this work. Every inmate in his circumstance is treated the same for purposes of calculating jail time credit. He looks forward to getting back to work and having a good season."
Benson pleaded no contest to two misdemeanor assault charges Monday in Austin. He was arrested in 2010 for punching a bar employee. He was arrested again in July for punching a former roommate.
Benson enters the season coming off back-to-back 1,000-yard performances. He started all 16 games in 2010, rushing for 1,111 yards and seven touchdowns.
The Associated Press contributed to this report.