AP

Running back Jay Ajayi has done something only three other men have done in NFL history.

With a 14-yard run in the fourth quarter against the Bills, Ajayi went over 200 rushing yards for the second straight game. He joins O.J. Simpson, Earl Campbell and Ricky Williams as the only backs in history to pull off that feat in back-to-back games.

Ajayi stayed down at the end of that 14-yard run and then went to the sideline after a check from the trainers. Ajayi walked off under his own power and now has 212 yards on 28 carries after going for 204 yards last week.

Damien Williams took over for Ajayi in the backfield and ran for a 12-yard touchdown a couple of plays later. That leaves the Dolphins up 21-17 with 3:56 left to play in Miami.