Ben Goessling, ESPN Staff Writer 9y

Vikings' John Sullivan clears concussion protocol, should play Sunday

EDEN PRAIRIE, Minn. -- Minnesota Vikings center John Sullivan has passed the NFL's concussion protocol and is in line to play Sunday against the Tampa Bay Buccaneers, coach Mike Zimmer said Thursday.

Sullivan was a limited participant in practice Thursday, but Zimmer said the center "did everything."

Guard Vlad Ducasse also returned to practice in full after injuring his knee last Sunday in Buffalo. Zimmer, however, would not say for certain whether the Vikings would use the same five offensive linemen against the Buccaneers.

"Everything's a little in flux with the injuries, so we'll see," Zimmer said.

Linebacker Gerald Hodges (hamstring) returned to practice on a limited basis, and defensive end Corey Wootton was a full participant after the lower-back injury that kept him out of Sunday's game also limited him Wednesday. Safety Antone Exum missed practice with an ankle injury, however, and cornerback Josh Robinson left practice early after injuring his ankle in individual drills. Zimmer said he wasn't sure how the injury would affect Robinson's status for Sunday.

"He wasn't going very fast when he did it," Zimmer said.

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