Orchard Park, N.Y. -- The Buffalo Bills knew they had to figure something out at cornerback.

When E.J. Gaines left the team's game against the Buccaneers on Sunday, the Bills were down to just three healthy cornerbacks. They've played most of the season with four cornerbacks on their game-day roster. So on Monday, the Bills claimed cornerback Tony McRae and waived wide receiver Kaelin Clay.

McRae is an undrafted rookie out of North Carolina A&T. He had stints with the Raiders and Bengals during the summer before the Ravens signed him to their practice squad on September 5. He joined the Ravens' active roster on September 16 and appeared in five games.

Meanwhile, Clay made a limited impact in his time with the Bills. On roster cutdown weekend, the Bills traded cornerback Kevon Seymour to the Carolina Panthers in exchange for Clay, who caught just one pass for 28 yards and made a limited impact on special teams.

With Gaines and safety Jordan Poyer both listed as day-to-day, the Bills felt a need to add some depth in the secondary.