The San Francisco 49ers announced on Tuesday that they have placed linebacker Shayne Skov on the Injured Reserve List and promoted safety Marcus Ball to the active roster from the team’s practice squad. San Francisco has also signed linebacker Wynton McManis to the practice squad.
Ball (6-1, 215) originally signed to the team’s practice squad on Nov. 22, 2016. He entered the NFL with the New Orleans Saints on April 2, 2014, signing as an undrafted free agent out of the University of Memphis. He appeared in 12 games (two starts) during his rookie season where he registered 12 tackles on defense and nine special teams tackles.