The National Football League on Tuesday placed Houston Texans safety Jimmie Ward on the Commissioner Exempt List, barring him from games and practices while allowing him to remain on full pay. League officials did not specify the duration of Ward’s removal but said the move follows multiple off-field incidents involving the 33-year-old defender during the off-season. Separately, the NFL suspended San Francisco 49ers wide receiver Demarcus Robinson for three games without pay for violating the league’s Policy on Substances of Abuse after he entered a no-contest plea to a DUI charge. Robinson will be eligible for reinstatement on Sept. 22, the day after San Francisco’s Week 3 matchup against the Arizona Cardinals. His absence frees a roster spot as clubs approach the regular-season cut-down deadline.