June 28, 2014 at 11:56 pm

Saturday's baseball roundup: Mike Napoli's ninth-homer off Masahiro Tanaka lifts Red Sox past Yankees

Red Sox slugger Mike Napoli homers in the ninth inning of a victory over the Yankees on Saturday night. (Rich Schultz / Getty Images)

New York — Mike Napoli hoped Masahiro Tanaka would make a mistake. The New York Yankees ace sure did — he twice shook off his catcher, then threw the Boston slugger a pitch he could handle.

Napoli stung Tanaka by hitting a solo home run with two outs in the ninth inning, lifting Jon Lester and the Red Sox over the Yankees, 2-1, on Saturday night.

Napoli had struck out in his previous two at-bats and was down 1-2 in the count before lining an opposite-field drive into the first row of the seats in right.

“He had me where he wanted me,” Napoli said. “I was just looking for something up in the zone.”

Napoli, who also homered off Tanaka at Fenway Park in late April, raised his right arm as he rounded first base and headed toward a dugout celebration.

Tanaka, the top winner in the majors and the AL ERA leader, turned to watch the ball sail, twisting his body when it cleared the wall.

“It was the worst thing I could’ve possibly done,” Tanaka said through a translator.

Tanaka wanted to take a different approach than catcher Brian McCann.

“He asked for a splitter and for a slider, and I shook off both of them,” he said.

Tanaka said he intended to throw a fastball out of the strike zone to set up a breaking ball.

Instead, Napoli hit it out of the park. His third home run in five games, and 10th shot overall, flew far enough reach the short porch.

“Power hitters are going to have the ability to hit to all fields. We all know that right field here is not very forgiving,” Red Sox manager John Farrell said. “Last night, they hit one in the first row. Tonight, we did.”

The Red Sox won for just the third time in nine games. The victory made the defending World Series champions 37-44 at the midpoint of the season — it’s the first time since 1997 that Boston has been under .500 at the halfway mark.

Lester (9-7) held the Yankees hitless until the sixth. He gave up an unearned run and five hits in eight innings, striking out six and walking two.

Koji Uehara pitched a perfect ninth for his 17th save in 18 chances.

Tanaka (11-3) allowed seven hits in a complete game, striking out eight and walking one.

The Yankees lost for the fifth time in seven games. Tanaka dropped consecutive starts for the first time in the majors.

The matchup between Lester and Tanaka shaped up as a pitchers’ duel, and it certainly was. Lester improved to 13-6 lifetime against the Yankees, including a loss to Tanaka in Boston on April.

Lester and Uehara came through for a Red Sox team that has scored three runs or fewer in 12 of its last 14 games.

Napoli did his part, too, tagging Tanaka.

“He pitched pretty well to Nap all night,” Lester said. “I’m guessing Nap put a pretty good swing on that ball right there. Luckily, we’re in Yankee Stadium and not anywhere else and that ball goes out.”

An odd sequence ended the Yankees eighth. Jacoby Ellsbury tried to steal second with two outs and the fans cheered when catcher David Ross’ throw skipped into center field. As Ellsbury headed toward third, however, the crowd began to realize strike three had already been called on Mark Teixeira.

Earlier in the inning, second baseman Dustin Pedroia made a nifty pickup and glove flip to start a double play on Derek Jeter.

Ross homered in his second straight game, launching a drive far over the left-field fence in the third. Tanaka muttered to himself as Ross rounded the bases.

Lester, who threw a no-hitter against Kansas City in 2008, held the Yankees hitless until Brett Gardner bounced a leadoff single up the middle in the sixth.

Lester’s bid was extended with two outs in the fifth when Yangervis Solarte was called out on a video review, taking away an infield single.

Pedroia opened the next inning with a single, and tried to test the arm of Ellsbury, his former teammate. The Yankees center fielder made an accurate throw and Pedroia was called safe, but he was ruled out after New York challenged the umpire’s decision.

The Yankees scored in the third when Brian Roberts reached on shortstop Stephen Drew’s error, Solarte was hit by a pitch, Gardner sacrificed and Jeter had an RBI grounder.

In other Yankees news, left-hander CC Sabathia tested his injured right knee in Tampa, Fla., allowing two runs and three hits over 2.1 innings in his first rehabilitation game since going on the disabled list in May.

In other Red Sox news, hightly touted prospect Mookie Betts from the minors, hoping he might be able to boost a lineup that’s had trouble scoring runs. They demoted promising right-hander Rubby De La Rosa to their top farm club.

Injury report

Nationals outfielder Bryce Harper (left thumb) hit three home runs and drove in five runs in a minor-league rehab game in Arkon, Ohio. It’s unclear if Harper will have another rehab game. He tore the ligament in his left thumb on a head-first slide into third in April.

... A’s right fielder Josh Reddick is sidelined again by a sore right knee. He left Saturday’s game at Miami in the fourth inning after he re-aggravated the injury, and he’s scheduled to have an MRI exam Sunday.

... Rangers left-hander Derek Holland, sidelined following micro-fracture knee surgery in January, completed a simulated game but isn’t scheduled to be sent out for a rehab pitching assignment.

... The Pirates activated Gerrit Cole (right shoulder fatigue) from the 15-day disabled list, and the right-hander started Saturday against the Mets. He went four innings in a 5-3 loss.