NEW YORK -- An X-ray on Manny Acosta's hyperextended right wrist revealed no break, but the Mets remain unsure of the reliever's status for this weekend's Subway Series.

After falling on his hand in the eighth inning of Thursday's game, Acosta underwent testing and had a heavy wrap placed on his wrist. As of game time Friday, the Mets had not put him on the DL, though that may not preclude them from doing so at some point this weekend.

"It depends on how he can deal with the discomfort," manager Terry Collins said prior to Friday's game. "I'm sure he'll be a little sore today."

If the Mets do need to replace Acosta on the roster, they would likely call on right-hander Ryota Igarashi, who has not allowed a run at Triple-A Buffalo in nearly a month.

"We've got to make a determination if he can pitch or not," Collins said of Acosta. "We can probably get by [Friday], but we're not going to go this whole series short on pitchers."

Reliever Buchholz battling depression, anxiety

NEW YORK -- Mets reliever Taylor Buchholz is battling depression and anxiety at his home in Pennsylvania, the team announced Friday, and will remain sidelined indefinitely.

Buchholz, who was already on the disabled list due to right shoulder fatigue, is no longer experiencing any soreness in his arm. He is now working with the Mets to overcome his depression.

"The shoulder and the depression and anxiety arose ... within close proximity," Mets general manager Sandy Alderson said. "It may be that the shoulder contributed to other issues."

In a statement, Buchholz revealed that he first experienced "some depression and anxiety" before returning from Tommy John surgery with the Rockies last season.

"I thought I had it under control, but recently, at the end of May of this year, the depression and anxiety began to re-surface," Buchholz said in the statement. "After consulting with my doctor, I agreed to try different medications, and it was recommended that I not pitch while I adjust to the new medications. I am in regular contact with the Mets and have kept them informed of my progress. I am extremely grateful for the way the Mets have cared for me and my family."

  • 131 wins
  • 121 wins

Within baseball, there is precedent for such issues. Most famously, then-Royals pitcher Zack Greinke spent almost the entire 2006 season on the disabled list due to psychological issues. Others, such as Reds first baseman Joey Votto, have followed suit in recent years, openly addressing a topic once considered taboo within Major League clubhouses.

In addition to taking medication, Buchholz is working with the team's Employee Assistance Program to overcome his issues. The Mets remain hopeful that he will pitch for them again.

"We monitor the situation, but this is one of those things where it's hard to push" Alderson said. "And when you push, it may be counterproductive."

Santana resumes throwing off mound

NEW YORK -- Rehabbing left-hander Johan Santana has resumed throwing off a mound, though the Mets remain unable to establish a clear timetable for his return.

Santana, who ceased his mound work early last month after experiencing soreness in his surgically-repaired left shoulder, threw a bullpen session Wednesday at the team's Spring Training complex in Port St. Lucie, Fla. Once he throws two consecutive sessions without discomfort, Santana will begin working to increase his arm strength to the necessary level.

Barring another setback, that would put him on track to return sometime in August. But the Mets remain cautious in their discussions of potential timelines.

"The schedule," general manager Sandy Alderson said, "has been somewhat unpredictable."

More heartening to Alderson is the progress of David Wright, who swung off a tee and participated in a soft-toss drill for the first time on Friday. Wright, who has been on the disabled list since May 18 with a stress fracture in his lower back, may begin rehab games next week, with the goal of returning immediately after the All-Star break.

"I think we're all encouraged by what he's doing," Alderson said. "He hasn't run into any rough patches at this point."

The Mets offered little new on first baseman Ike Davis, who continues to rehab from a bone bruise in his left ankle and continues, in Alderson's words, to do "all the things, short of running, that he can do." Davis plans to receive a second opinion on the test results he received last month, though it remains possible that he will require season-ending surgery.

"I hate to characterize it as better," Alderson said of the ankle. "It's certainly not worse."

Worth noting

• The Mets expect outfielder Willie Harris, who was placed on the bereavement list Thursday after he and his wife lost their baby during childbirth, to return to the club on Sunday. Fernando Martinez is occupying a roster spot in his absence.

• Songwriter Ruth Roberts, who co-wrote the original version of "Meet the Mets" in 1961, passed away Friday morning from lung cancer. She was 84.

• Major League Baseball announced Friday that Mike Piazza will manage the U.S. team at the XM All-Star Futures Game on July 10 in Phoenix.

• Former Mets outfielder Bobby Bonilla officially went back on the team's payroll on Friday. When the Mets cut Bonilla in 2000, they agreed to defer the $5.9 million left on his contract, with interest, to be paid in yearly installments each July 1 from 2011 through 2035.