Denver signed four players to future contracts on Monday, including former Niners and Chiefs wideout/return man Kyle Williams, who worked out for the team earlier in the month. Williams, the son of White Sox exec Kenny Williams, has some experience returning both kicks and punts, and would figure to compete with Omar Bolden and Jordan Norwood for return duties next summer.
Linebacker Chase Vaughn was also signed; he spent the summer with the Broncos before being waived in late August with an injury. The other two signees are wideout Jeremy Kelley, who has played in the CFL and Arena League, and corner Curtis Marsh, a 2011 third-round pick of the Eagles with 13 career tackles to his credit.