Chris Cook making a push in Vikings camp

While national discussion has centered on the status of quarterback Brett Favre and his injured teammates, there appears to have been an interesting under-the-radar development in the Minnesota Vikings' camp.

According to those who have been covering daily practices, rookie cornerback Chris Cook has flashed far more often than veteran Lito Sheppard -- the presumed short-term replacement for injured starter Cedric Griffin. Cook's playmaking continued during Friday's morning practice, when he broke up a 50-yard pass from Tarvaris Jackson to receiver Bernard Berrian.

Cook, the Vikings' top pick in the April draft, was sidelined by a minor injury this spring and entered training camp buried deep on the depth chart. But veteran nickelback Benny Sapp hasn't participated in many practices because of an injury, and a healthy Cook apparently has taken advantage of the nickel repetitions he has received.

For now, Cook is working as the second-team left cornerback behind Antoine Winfield. Defensive coordinator Leslie Frazier told reporters there are no immediate plans to move Cook into a direct competition with Sheppard, but it will be interesting to see whether Cook can wiggle into that conversation as training camp continues.

"We've talked about that," Frazier said, "but I think it serves him best at this point to stay at left and get his footwork down, get comfortable there. There may come a time when we will take a look at him at right. For now, we'll let him get what he can at left and get comfortable there and we'll see as time goes on."