The New England Patriots are no longer perfect, all because of a rookie quarterback who still is.

The Patriots (6-1) had won 21 straight counting the playoffs and a league-record 18 in a row in the regular season, but were all but out of this one after Roethlisberger threw two touchdown passes to Plaxico Burress during a 21-point Steelers first quarter.

Maybe all this winning was too much to ask of Boston-area teams. With running back Corey Dillon (thigh) sitting out and Pro Bowl cornerback Ty Law (foot) sidelined for all but a few plays, the Patriots’ record run ended only four days after the Boston Red Sox won their first World Series in 86 years.