Vikings without No. 1 WR Stefon Diggs, Sam Bradford vs. Packers

— -- EDEN PRAIRIE, Minn. -- The? Vikings?will be without three starters against the? Packers?on Sunday, with No. 1 receiver Stefon Diggs?and left guard Nick Easton?joining quarterback? Sam Bradford?on the sideline.?

Bradford, who returned last week after missing three games, aggravated a knee injury late in the first half of Sunday's 20-17 win against Chicago. He was replaced by? Case Keenum, who?completed 17 of 21 passes for 140 yards and a touchdown vs. the Bears.

Keenum will make his fourth start of the season Sunday.

Though Bradford was not seen during the media portion of practice Friday, coach Mike Zimmer said he's been at the facility.

"I haven't had him running sprints, but he's been around," Zimmer said.

Diggs said he tweaked his groin early in the third quarter Sunday, which led to him playing a season-low 70 percent of Minnesota's offensive snaps. He was treated by training staff on the sideline and returned, but was not targeted in the second half.

The wide receiver, who battled through the 2016 season after injuring his groin in Week 4, did not practice this week. He said Thursday that this injury is different than the one he sustained last year, which limited him to 13 games and curtailed his ability to separate from defensive backs.

"It's not the same way as last year," Diggs said. "Last year was really bad. I feel pretty good."

With Diggs out, Minnesota will tap into its depth at the position. The Vikings don't have a clear No. 3 receiver behind Diggs and Adam Thielen, but Jarius Wright is the next in line in terms of production.

The Vikings also have the option of? testing out more of? Michael Floyd's?downfield capabilities. Floyd, in his first game back after a four-game suspension, had one catch for 19 yards against the Bears.

Coach Mike Zimmer said Floyd is fully immersed in the playbook and will get reps against the Packers.

Easton's absence comes after his best game of the season, where his block sprung? Jerick McKinnon?for the Vikings' longest rushing play of the year. Easton injured his calf and was replaced by Jeremiah Sirles for the final 10 offensive plays of the game.

Sirles' ability to play both tackle and guard spots is an added benefit for the Vikings.

"He's played all those positions," Zimmer said. "I think he's played center in his career, too. That's probably the reason why he's valuable."

Safety Andrew Sendejo was limited in practice Friday after not participating for two days. He is listed as questionable for Sunday's game.