Uchenna Nwosu, Seattle Seahawks outside linebacker, is on the physically unable to perform list and may not practice until close to Week 1 as he recovers from knee surgery.
What Seahawks rookie TE Elijah Arroyo's arrival means for Noah Fant
"This guy can run an extensive route tree," Macdonald said. "To have to account for a tight end body on the field and him also to be able to split out wide, do X receiver type of things..."
Lockett's departure from Seattle marks the end of a decade-long tenure with the franchise, during which he became one of its most prolific pass catchers.