Robinson placed on PUP list, Bykowski could go to IR, and Sullivan sits out yet again

The Vikings have placed cornerback Josh Robinson on the reserve PUP list.

Under this injury designation, Robinson will not count against the team's roster. He is eligible to return as early as Week 7. At that point, the Vikings have a five-week window in which Robinson can return to practice. Once he practices, the Vikings have three weeks to add him to the active roster.

Robinson started training camp on the PUP list after partially tearing a pectoral muscle during spring workouts. He has not practiced since.

This move, which was expected, got the team's roster down to 77 men.

Waiving offensive tackle Carter Bykowski, who tore his pectoral in the second preseason game, with an injured designation got the Vikings to 76. If he clears waivers, he will revert to injured reserve.

They must make one more cut or roster move to get to 75 by tomorrow.

Quarterback Mike Kafka was not practicing this afternoon. Instead, he stood and watched the three other quarterbacks go through position drills.

Also sitting out practice at Winter Park today were starting center John Sullivan, nose tackle Shamar Stephen and outside linebacker Brian Peters.

It has now been 12 days, six practices and two preseason games since we last saw Sullivan, who is dealing with back spasms, according to the team. The Vikings have downplayed Sullivan's injury and absences, but the fact that he still remains sidelined seems like a reasonable cause for concern.