In a locker room growing increasingly full of first-time fathers, Vikings linebacker Chad Greenway should be dispensing parenting advice as often as football wisdom.

The Greenway family will grow by one very soon, but exactly when remains unknown. All he knows is his wife, Jennifer, could give birth "any day."

"We're on a minute-to-minute basis," Greenway said Tuesday. "I might get in there and have a call waiting like 'meet me at Southdale [Hospital.]' So we'll see how it goes."

There's a chance Greenway, the Vikings' 11th-year linebacker, could miss Thursday's Thanksgiving Day game in Detroit should the baby arrive before they depart Minneapolis on Wednesday.

"You're damn right, if she's having the baby," Greenway said when asked if he could miss the game, adding in jest: "Get on [owner Zygi Wilf's] plane, get back for the second half."

Chad and Jennifer already have three daughters between Maddyn, Beckett and Blakeley. Their most recent child, Blakeley, was born in September 2014 — on a player's off day.

"We've had four football babies, this will be our fourth," Greenway said. "It's just we've never had to travel, we've always been able to avoid that."

It's quite the Thanksgiving twist for Greenway, the family man and Vikings' charitable leader in the locker room. He's expected to retire this offseason, ending an 11-year run with the Vikings after playing out his current one-year contract.

"You're used to being away from family on holidays from our profession, so I think you kind of get used to it," Greenway said. "It doesn't make it easier, but in this case with a baby so close to coming, there's a lot of anxiety."