It looks like the Indianapolis Colts' "mystery wide receiver" has been uncovered. More than a week after owner Jim Irsay said the team was close to another free agent contract on an unnamed free agent receiver, Darrius Heyward-Bey will visit the team as early as Monday, according to ESPN. The former seventh overall pick was more productive with the Raiders than many fans realize. He gained 975 yards in 2011 before dropping down to 606 yards after coach Dennis Allen took over in 2012. He's a sensible vertical replacement for Donnie Avery, who left the Colts in free agency. Indianapolis has a lot of weapons for Andrew Luck with Reggie Wayne, T.Y. Hilton, and two young pass-catching tight ends, but the team lacks a potential No. 1 receiver for after Wayne retires. DHB won't fill that role, so we wouldn't rule out the team taking a receiver high in the draft. Heyward-Bey would fill a role more designed for veteran depth than anything.