Christian Kirk Has 21-Day Practice Window Opened by 49ers

The San Francisco 49ers have officially designated wide receiver Christian Kirk to return from injured reserve, opening his 21-day practice window following a limited session Thursday. Kirk had been sidelined since suffering a calf injury on the first day of training camp over three months ago. While he is unlikely to play Monday against Washington, his return provides much-needed depth for San Francisco's banged-up wide receiver corps.