LAKELAND, Fla. -- Mets general manager Sandy Alderson said the team will not take any action regarding the DUI arrest of bullpen catcher Eric Langill until there is a full investigation of the situation.

The incident occurred Sunday night after a team bowling event.

"Based on what I know at this point, he was involved in a single-car accident around 11:30 [p.m. ET]. At that point he was arrested for DUI and property damage, spent the night in local jail and has been released. At this point we don't have all the facts. We will be talking to Eric and trying to gather as many facts as we possibly can before we decide on any disposition," Alderson said.

"Obviously, we're very disappointed this happened."

Alderson expressed concern that the situation developed after one of the bonding nights that the Mets began last year. "However, I was at bowling night. I was here when it substantially concluded at 8:45. This incident occurred at approximately 11:30," he added. "So from that standpoint, there's a substantial time between when this official event ended and the incident occurred. Obviously, we want to make sure to the degree that we're having an official event that players and staff participating handle themselves properly."

Niese focused on refining changeup

LAKELAND, Fla. -- Jonathan Niese is still working on his two-seam changeup. The Tigers told him that he still needs to refine the pitch.

Niese blanked the powerful Tigers through two innings in Monday's 7-7 tie at Joker Marchant Stadium. In the third, Detroit broke through for three runs on four hits.

"In that third inning I was working on two-seam changeups. For me, those are just show pitches. They're not my strength," he said. "Obviously, that's what spring is for. In retrospect, I would have done it differently during the regular season. It's just a learning experience. You just have to keep going out there and know how to get the hitters out and keep that same game plan."

He hopes to get to the point where that pitch is a legitimate weapon for him.

"That's what I'm working on," he said. "Right now it's just another pitch for the hitters to think about and keep them off balance. It's not one of my stronger pitches. So I can't base my whole game on my changeup. I'd like to say I could, but I really can't right now. But that's something I'm going to work on and it's going to get better."

In the end, he chalked it up to a learning experience.

"I agree that I should be working on my pitches in the bullpen and not during the game. I think the game is more to get outs. You do want to work on pitches in game situations. You find out what works and what doesn't work," he said.

"And, obviously, I found out that sinkers and changeups to that lineup, they handle it well," he added with a laugh.

Duda's back appears to be healed

LAKELAND, Fla. -- The Mets have been dealing with medical issues all spring. It appears they can cross right fielder Lucas Duda off the list of things they have to worry about.

After missing three games with a sore lower back, Duda returned to the lineup at Joker Marchant Stadium for Monday's Grapefruit League game against the Tigers and blasted a grand slam in the fifth inning off right-hander Jacob Turner.

"If it still hurts him, I sure hate to see how hard he's going to hit them when he feels better," manager Terry Collins said with a laugh.

Worth noting

• Mike Nickeas, trying to make the team as a backup to Josh Thole, had two doubles and a pair of RBIs to raise his spring average to .364.

"He really is showing something," Terry Collins said. "You tell a player when he comes into camp, hey, here's what we've got to see. And he's done nothing but swing the bat very, very well."

• Top prospect Wilmer Flores was charged with two errors, one fielding and one throwing, in the eighth inning. Overall, the Mets committed three errors.