Haynes (calf) was a full participant in Thursday's practice, John Boyle of the Seahawks' official site reports.
Haynes missed his second straight game in Week 8 against the Browns while dealing with a lingering calf issue. He was limited in Wednesday's session, but the fact that he was able to practice in full Thursday indicates that he's trending towards resuming his starting role at right guard for Sunday's game against the Ravens.