Vikings sign QB Sloter to 53-man roster from practice squad

The Minnesota Vikings activatedquarterback Kyle Sloterfrom the practice squadon Saturday, placing him on the53-man roster one day ahead of a Week 2 matchup against the Pittsburgh Steelers. To make room, Minnesota waived four-year defensive back Antone Exum Jr.

The move comes after starting quarterback Sam Bradford was listed as questionable with a left knee injury for Sunday's game.

The Vikings signed Sloter to their practice squad on Sept. 4, two days after his release from the Broncos. Sloter, an undrafted rookie out of Northern Colorado, starred in the preseason for Denver with413 passing yards, 3 TD and 0 INTs on 31-for-43 passing, adding up toa 125.4 passer rating.

Minnesota now has three quarterbacks on its 53-man roster: Bradford, Sloter and backup Case Keenum, who would get the start in Pittsburgh if Bradford was held out.