BOSTON – The New York Yankees got into another scuffle with fans on a testy night at Fenway Park. This time, Gary Sheffield was in the middle of it.

Sheffield was fielding Jason Varitek’s two-run triple along the right-field fence in the eighth inning of Boston’s 8-5 victory last night when a fan swung a short uppercut in his direction, appearing to graze the side of the slugger’s face with his right arm.

“I just felt something hit me in the mouth,” Sheffield said. “I don’t know if he hit me or not, it felt like it. I thought my lip was busted.”

After Sheffield picked up the ball, he shoved the fan before throwing the ball back to the infield. Another fan tossed a beer at Sheffield, who whirled around with a cocked fist but restrained himself. He shouted in the face of the first man – but did not throw a punch. A security official quickly jumped over the three-foot wall to separate the two.

“It could have been worse if I didn’t hold my composure,” Sheffield said. “I almost snapped, but the thing is I thought about the consequences.”

The fan was ejected from the ballpark but not arrested.

During the 2003 AL playoffs, two Yankees players got into a brawl with a Red Sox groundskeeper in New York’s bullpen. Relief pitcher Jeff Nelson and outfielder Karim Garcia were charged with assault but agreed to a deal last October that called for the charges against them to be dropped in six months.

Edgar Renteria’s RBI double in the eighth broke a 5-5 tie, and Boston took two of three from its rival to even the season series at three games apiece.

Randy Johnson gave up three homers for only the 12th time in his career, and Red Sox manager Terry Francona and hitting coach Ron Jackson were ejected after questioning calls by plate umpire Greg Gibson.

Johnson left with the score 5-5 after seven innings and Tom Gordon (0-1) fell behind before getting an out. Johnny Damon led off the eighth with a single and scored on a double by Renteria, who had made the last out for St. Louis in Boston’s sweep of last year’s World Series.

After an intentional walk to David Ortiz, Varitek hit a ball down the rightfield line that hugged the curved wall and led to all the trouble.

“We have to give Sheffield a lot of credit,” Damon said, “for him to restrain himself the way he did.”

Varitek’s two-run triple gave the Red Sox an 8-5 lead.

Sheffield led off the ninth with a double off the Green Monster and the Yankees loaded the bases before Keith Foulke (1-1) ended the game by getting Ruben Sierra to foul out to catcher Varitek, who made a nice catch on a difficult play near the stands.