After missing two days of practice with an Achilles injury, Lions wide receiver Calvin Johnson was back on the field Friday as a limited participant.
Johnson was listed as probable for Detroit's Sunday regular-season finale in Green Bay. He has the second-most receiving yards (1,437) in the NFL and is tied for the most receiving touchdowns (15).
With two days to go before they travel to Lambeau Field to face the Packers, the Lions practiced outdoors, according to the Detroit Free Press.
Safety Louis Delmas was seen stretching but didn't take part in drills during the portion of practice open to the media, according to the Detroit News. Delmas was listed as a limited participant and is doubtful for Sunday's game.
Delmas has missed the past four games with a knee injury and told MLive.com that he didn't expect to play against Green Bay.
Defensive tackle Nick Fairley, who has been hampered this week by an injured foot, was limited but is questionable for Sunday. Defensive tackle Corey Williams, who has missed the past two days of practice with a hip injury, didn't participate and also is questionable.
For a complete look at all injuries around the league, go to NFL.com's injury page.