The Saints agreed to terms with Gay on a one-year deal worth up to $5 million Tuesday, Mike Garafolo of NFL Network reports.
Gay (neck) was given a limited designation in Kansas City's practice estimate Wednesday.
Gay (neck) has been ruled inactive ahead of Sunday's AFC Championship Game against the Chiefs.
Gay (neck) is expected to play Sunday against the Ravens, James Palmer of NFL Network reports.
Gay (neck) is listed as questionable ahead of Sunday's AFC Championship Game against the Ravens.
Gay (neck) was a limited participant in Kansas City's practice Wednesday.
Gay (neck) is active Sunday against the Bills.
Gay (neck) is expected to play in Sunday's divisional-round game versus the Bills, James Palmer of NFL Network reports.
Gay is a late addition on the Chiefs' injury report ahead of Sunday's game in Buffalo due to a neck injury, Adam Schefter of ESPN reports.
Gay (lower back) is active for Sunday's game against the Dolphins in Frankfurt, Germany.