Alshon Jeffery of the Chicago Bears has been suspended without pay for the team’s next four games for violating the NFL policy on performance enhancing substances.

Jeffery’s suspension begins immediately. He will be eligible to return to the Bears’ active roster on Monday, December 12 following the team’s December 11 game against the Detroit Lions.

Jeffery is playing this season under the franchise tag worth $14,599,000 in 2016. Jeffery is leading the team with 630 receiving yards.