Takeo Spikes is in demand during free agency

Nobody could figure out what San Francisco 49ers head coach Kyle Shanahan was challenging. Early in the second half of his team's embarrassing 30-18 home loss to the Indianapolis Colts on Sunday night, the coach threw his red flag onto the field. Shanahan was apparently challenging the play that saw Colts running back Jonathan Taylor fumbling the football. That left everyone scratching their heads. Anyone with access to the replays could quickly tell Shanahan that Indianapolis clearly recovered the football. However, the coach didn't have access to the replays and couldn't tell what was happening from his sideline view. To make matters worse, he couldn't get a hold of anyone who did have access to the replay. "Yeah, that was a mess-up by us,"