New York Jets middle linebacker C.J. Mosley, the most accomplished player on their defense, has decided to opt out for the 2020 season, sources told ESPN.

Mosley hasn’t commented publicly, but a source said it was due to family health reasons.

Mosley, the highest-paid player on the Jets, was due to make a total of $16 million this year. He already received $10 million in the form of a roster bonus, paid in mid-March. He was scheduled to make $6 million in base pay.