NEW YORK -- David Wright now has more total bases than anyone else in Mets history. His fifth-inning single off San Diego's Cory Luebke on Thursday at Citi Field gave him 2,048 total bases, surpassing Ed Kranepool's record of 2,047. Kranepool's record had stood for more than 30 years since the 18-year Met retired in 1979.

"Ed's around the field quite a bit, so it's pretty cool, I guess," Wright said after the Mets' 3-2 loss to the Padres. "I wish we could have done it in a win."

Wright went 1-for-3 with a walk and a run scored on the afternoon and said after the game that he did not know about the record until Mets vice president of public relations Jay Horwitz told him about it Thursday morning.

Wright now has 1,210 career hits, leaving him 53 behind teammate Jose Reyes and 208 behind Kranepool on the all-time Mets leader board.

Pagan out of lineup, but back feeling better

NEW YORK -- Though Mets center fielder Angel Pagan was not in the lineup for Thursday's game against the Padres at Citi Field, he said the lower-back spasm that led to him coming out of Wednesday's 9-5 loss to the Padres in the fourth inning is feeling much better.

Pagan was treated with muscle relaxers Wednesday night and expected to be available to pinch-hit or play the field should manager Terry Collins need him off the bench on Thursday. Collins decided to be cautious with Pagan in part because he was worried Pagan's back could tighten up during the Mets' flight to Arizona for their series against the D-backs.

"I feel it a little bit, but not like yesterday," Pagan said. "It kept getting tight on me. I was concerned about it, but thank God it's nothing major, and just a matter of a little time."

Pagan was replaced by Scott Hairston in center field and in the leadoff spot Pagan inherited from the injured Jose Reyes. It will be Hairston's first game hitting leadoff since Sept. 13, 2010, but he has plenty of prior experience at the top of the lineup. In 106 career games batting leadoff, Hairston is batting .288 with a .343 on-base percentage and a .555 slugging percentage.

"Scotty has led off before, he's done it, so I thought it would be a good spot to get him in there and get him up there a few times," Collins said.

Hairston said that, in the past, he's tried to change his approach when he's hit leadoff, but that he was more successful maintaining the approach he usually takes when hitting elsewhere in the lineup.

"My mentality today is just to get on base," Hairston said.

Acosta available despite torn fingernail

NEW YORK -- Mets reliever Manny Acosta was available out of the bullpen Thursday after half of the fingernail on his right pinkie was torn off by a comebacker Tuesday night.

Acosta will likely be in demand by manager Terry Collins, with Bobby Parnell and Pedro Beato both unavailable after each threw over 25 pitches on Wednesday.

"We're a little short today," Collins said. "Manny's going to have to step in. We might have to wipe the blood off the balls, though."

The short bullpen will also put increased pressure on starter Jon Niese to go deep into Thursday's game. That task could be a tough one for Niese, who hasn't gone six innings in his past three starts and has gone seven just twice in his past 10. Still, Collins said he thinks Niese knows the situation and will pitch accordingly.

"The one thing about pitchers, they're aware of what's going on," Collins said. "I've had starting pitchers tell me, 'Hey, look, I know we're short in the bullpen, you can stay with me.' R.A. [Dickey] does it all the time."