Five-time Pro Bowl defensive end Calais Campbell has asthma and welcomed a new baby with his wife earlier this year.
Jackson’s decision leaves the Terps with very little depth and experience at the pivotal position.
“We had a bad night defensively, doing things that we hadn’t been doing.”
Renato Nunez homered twice in a losing effort for Baltimore.
Return specialist De’Anthony Thomas and offensive tackle Andre Smith were the only Baltimore players to opt out for 2020.