Rodgers is in his fourth season as the Jets' defensive coordinator.
Jets defensive coordinator Kacy Rodgers will miss New York's home contest with the Broncos on Sunday per the NFL Network's Mike Garafolo as the fourth-year defensive coordinator deals with a "serious illness."
Rodgers could be away from the team for significant time per Garafolo. Head coach Todd Bowles will call defensive plays against Denver on Sunday, but it is unknown who will handle the duties moving forward.
New York's defense shined in Rodgers' first season with the Jets in 2015, ranking ninth in the NFL in points allowed. It's been a struggle for the Jets over the past two seasons, though, ranking No. 28 and No. 22 in points allowed in 2016 and 2017, respectively.
The Jets will take on the Broncos at MetLife Stadium today, aiming to earn its second victory of 2018. Kickoff from East Rutherford N.J. is slated for 1:00 p.m.