Houston Texans release Andre Brown, work out Ronnie Brown, Brian Leonard & William Powell

Running back depth is certainly a concern for the Houston Texans.

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Although Alfred Blue, Jonathan Grimes and Dennis Johnson are all on the roster and working to earn a spot behind Arian Foster, none of those players are a proven commodity (Blue is a rookie) and Foster’s injury history has definitely given them some cause of concern. That’s likely why the Texans were working out running backs on Monday.

According to John McClain of The Houston Chroncie, the Texans worked out three veteran running backs – Ronnie Brown, Brian Leonard and William Powell.

Later in the day, the Texans released running back Andre Brown per a league source of Pro Football Talk.

Brown rushed for 492 yards and three touchdowns on 139 carries for the New York Giants last season. He has 876 yards and 11 touchdowns on 214 attempts in his career. Brown, a 32-year old, played for the San Diego Chargers for the last two seasons. Prior to that, he was the Philadelphia Eagles for a season. He was drafted with the number two overall pick in the 2005 NFL Draft and spent his first six years there. Last season, he had 157 yards and a touchdown on 45 carries. In his career, he’s rushed for 5,328 yards and 38 touchdowns on 1,261 carries. Powell rushed for 217 yards on 60 carries for the Arizona Cardinals in 2012. Leonard had 182 yards on 47 attempts for the Tampa Bay Buccaneers last season. He played for the Cincinnati Bengals from 2009-2012 after spending his first two pro seasons with the St. Louis Rams. He has 828 yards on 221 career carries.