- Pro Football Talk reports that Clay specifically has a torn meniscus and sprained MCL.
Buffalo will move forward with Nick O’Leary, Logan Thomas and Khari Lee as top tight ends while Clay is out.
Clay, 28, is a former sixth-round pick of the Dolphins back in 2011. After four years in Miami, the Bills signed him away from the Dolphins and gave him a five-year, $38 million contract that included $20 million guaranteed.
Clay stands to make base salaries of $4.5 million over the next three years.
In 2017, Clay has appeared in five games for the Bills and caught 20 passes for 258 yards receiving and two touchdowns. Pro Football Focus has him rated as the No. 31 tight end out of 67 qualifying players.