Allen shakes off a sluggish start in 34-10 rout of Titans [Video]

ORCHARD PARK, N.Y. (AP) — Amari Cooper scored the go-ahead touchdown in his debut with Buffalo and Josh Allen overcame a sluggish first half to throw two touchdown passes in his 100th career start to help the Bills rally from a 10-point deficit and beat the Tennessee Titans 34-10 on Sunday.

Cooper’s 12-yard TD catch was his first reception for the Bills and came five days after being acquired in a trade with the Cleveland Browns. Ty Johnson also scored on a 4-yard catch, and James Cook and Ray Davis rounded out the rout with touchdown runs.

After being limited to 4 of 11 for 65 yards in the first half, Allen finished 21 of 33 for 323 yards. It marked his 26th career 300-yard game and first this season. And Allen did so against a Titans defense that entered ranked first against the pass and had yet to allow …