ORCHARD PARK, N.Y. — Seven-and-a-half months after one of the most heartbreaking defeats in franchise history, the Ravens returned to Highmark Stadium with new and interesting ways to lose a winnable game. Their specialty Sunday night: the small stuff.

Ball security? Running back Derrick Henry lost a fumble in the fourth quarter. Special teams? Kicker Tyler Loop missed an extra point, inside linebacker Trenton Simpson mishandled a punt into the end zone, and tackling was suspect throughout. Situational execution? Buffalo went 48 yards before halftime in 30 seconds for a field goal without a timeout, and cornerback Jaire Alexander tackled wide receiver Keon Coleman rather than letting him stroll into the end zone on the Bills’ decisive go-ahead drive, a white flag that might’ve given the R

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