Vikings head coach Leslie Frazier said he's hopeful to have Percy Harvin on the practice field Friday as the team completes its preparation for Sunday's game with the Lions. Harvin missed his second consecutive practice on Thursday, still dealing with a sprained left ankle that has caused him severe pain since he suffered the injury during the second half of last week's loss in Seattle.

Still, even with Harvin's pain and the fact that the Vikings will be on bye next week, there seems to be a push to get the star receiver on the field against Detroit.

"If he can go, we'd play him and rest him after the game," Frazier said. "So we'll see how he does tomorrow."

After spraining the ankle in the third quarter last Sunday, Harvin returned to the field but was clearly not his usual explosive self. Frazier said Thursday he's not quite sure what Harvin would need to show to get the green light for Sunday.

"It's hard to say," Frazier said. "Until we watch him move around. We'll see him tomorrow and then we'll make that determination. Is he well enough to go out and play without putting himself in harm's way?"

Harvin wasn't the only offensive star to miss Thursday's practice. Running back Adrian Peterson left the Vikings' facility earlier in the day with a stomach illness and did not practice. Frazier said he hopes to have Peterson back on Friday as well.

The only other Vikings to miss Thursday's practice was nose tackle Letroy Guion, who's dealing with turf toe. Limited participants were Matt Kalil (knee), Antoine Winfield (knee) and Jerome Felton (shoulder).