What to know

• New York Jets quarterback Geno Smith left for the locker room in the third quarter of Sunday's matchup against the Buffalo Bills after he suffered an ankle injury. He had returned to the lineup for one drive in the second half after clearing concussion protoco...S1
• Geno Smith cleared a concussion evaluation early in the second half against the Bills on Sunday, but he returned to the sideline medical tent after playing one drive in the third quarter.S2
• The Jets have turned to Cade Klubnik at quarterback to start the second half of Sunday's game against the Bills.S3
• Jets’ Geno Smith getting evaluated for concussion after crushing hit as rookie Cade Klubnik takes overS4