Philadelphia (11-14) at New York (12-13)

Philadelphia Phillies starter Jon Lieber failed in his first attempt at his fifth win of the season. His second try won’t be any easier.

Lieber looks to bounce back from his first loss of the season as he faces Pedro Martinez and the New York Mets in the opener of a four-game series at Shea Stadium.

Lieber allowed three earned runs and four hits in six innings in Tuesday’s 3-1 loss to the Washington Nationals, failing to become the first pitcher in the majors to win his fifth game. Florida’s Dontrelle Willis and Jon Garland of the Chicago White Sox won their fifth games over the weekend.

Three of the four hits Lieber allowed went for extra bases, including two homers. He has allowed seven home runs in 35 2-3 innings this season.

Lieber also walked four batters, ending a streak of 43 starts with two walks or fewer. His walk of Jose Guillen on four pitches in the first inning ended a streak of 16 2-3 innings without allowing a walk.

“The bottom line is, I’m just very lucky it wasn’t any worse,” Lieber said. “My command was just horrible. Constantly 3-2 on guys, falling behind guys 3-0, makes it a long night. The bottom line is you’ve got to make adjustments, and I don’t think I did a very good job at it.”

Martinez was also charged with his first loss of the season on Tuesday, giving up season highs of four earned runs and seven hits in seven innings of a 4-3 defeat to John Smoltz and the Atlanta Braves. Martinez gave up three runs in the first inning, the fourth time in five starts he has given up a run in the opening frame.

“The results were not the ones I wanted,” Martinez said. “But I was pleased with the way everything went, especially knowing I’m healthy and able to make pitches to keep the team in the battle.”

Martinez, who entered Saturday’s games leading the majors with 46 strikeouts, had eight on Tuesday and allowed just one hit after the second inning.

The Mets beat the Nationals 6-3 Sunday night, snapping a four-game losing streak. Carlos Beltran went 3-for-5 with two doubles, including one that drove in a pair of runs in the ninth.

The Phillies beat Josh Beckett and the Florida Marlins 8-6 on Sunday for their third win in nine games. Bobby Abreu hit a three-run homer, and Tomas Perez went 3-for-4 with three RBIs in his second start of the season for Philadelphia, which scored five runs in the first inning.

“Hitting makes you look good,” manager Charlie Manuel said. “When a guy is hitting, he looks faster running the bases and better in the field.”