Thielen (ankle) didn't practice Thursday, Chris Tomasson of the St. Paul Pioneer Press reports.
Thielen remains in recovery mode from a high-ankle sprain as the Vikings took the field for the first time during Week 15 prep. Earlier Thursday, coach Mike Zimmer told Chad Graff of The Athletic that he's "hopeful" Thielen will be able to return Monday in Chicago. Considering Thielen suffered the injury Dec. 5, it may be wishful thinking for the wide receiver to play just a little more than two weeks later. Having said that, he does have two more sessions at his disposal to prove the health of his ankle.