Philadelphia Eagles defensive tackler Tim Jernigan missed practice Friday due to a mystery illness in preparation for his team's Super Bowl against the New England Patriots.
The exact nature of Jernigan's illness was not announced.
He is a key player in the defensive line. In 15 regular-season games in 2017, he made 29 tackles and had 2.5 sacks.
In addition, Eagles running back Jay Ajayi (ankle) was listed as limited on Friday's injury report. He did not complete the full Thursday session.
Running back Kenjon Barner also missed practice on Thursday but was in uniform and on the field as a full participant Friday as the Eagles kicked off their second practice of the week inside the team camp.
The Eagles and Patriots meet in the 52nd Super Bowl on February 4 in Minneapolis.
