EDEN PRAIRIE, Minn. -- Chad Greenway got back on the field at weak-side linebacker last Sunday against the Buffalo Bills, after a three-game absence because of broken ribs. But even now that he's back, the Vikings might still have depth concerns with their linebackers this week.

Gerald Hodges missed practice on Wednesday with a hamstring injury, after missing all three practices last week and sitting out Sunday's game against Buffalo, and it appears he could have a difficult time returning for Sunday's game in Tampa Bay if his injury doesn't improve in the next two days. The Vikings eased Greenway back into their nickel package on Sunday, but had him playing every snap by the end of the game. Still, the Vikings had made effective use of Hodges even when both he and Greenway were healthy, putting Hodges at strong-side linebacker in situations where they moved Anthony Barr to defensive end.

Greenway, it should be noted, was completely off the injury report after recovering from his broken ribs.

Center John Sullivan also did not practice on Wednesday with a concussion; coach Mike Zimmer said Sullivan passed the first part of the NFL concussion protocol, and has a good chance to play Sunday. Tight end Kyle Rudolph did not practice with a sports hernia, but was out on the field for some conditioning work for the first time since his Sept. 23 surgery.

Defensive end Corey Wootton, who missed Sunday's game with a low back injury, was limited, as was defensive tackle Sharrif Floyd with an ankle injury. Guard Vlad Ducasse returned to practice in a limited capacity after injuring his knee on Sunday, and rookie defensive backs Jabari Price and Antone Exum were limited with hamstring and ankle injuries, respectively. Safety Harrison Smith (ankle) and tight end Chase Ford (foot) were full participants.