Randall Cobb has missed practice with the Green Bay Packers this week after sustaining an ankle injury on Sunday.
The wide receiver is a doubt for the Packers' final game of the regular season against the Minnesota Vikings.
Head coach Mike McCarthy had been hopeful that Cobb would be ready for Sunday, but he is due to undergo further tests later today.
The 22-year-old is closing in on 1,000 receiving yards this season with eight touchdowns.
The Packers have already clinched their place in the playoffs, but can seal a bye week with a win this weekend.
