The Vikings activated Thielen (illness) from the reserve/COVID-19 list Wednesday.
Thielen, who missed the Vikings' Week 12 win over the Panthers, is thus in line to return to the field Sunday against the Jaguars. His return will be a big boost to the team's passing game, with the 30-year-old having posted a fantasy-friendly 49-646-11 stat line through 10 contests to date.