Joba Chamberlain’s delay in getting back to the Yankees resulted in Dellin Betances getting an unexpected ticket to The Bronx last night.

Chamberlain, out with a strained oblique, expects to have at least one more outing in the minors after playing catch today.

“We just want to make sure everything is strong so it doesn’t linger the rest of the season,” Chamberlain said after last night’s 3-2 loss to the Mariners at Yankee Stadium. “Every situation is different and you want to be able to trust it.”

His situation, coupled with a heavily worn bullpen, opened the door for Betances.

The 6-foot-8 righty was once a key part of the Yankees’ attempt to form a younger pitching staff in order to reduce payroll, but that plan took a hit when Betances walked 99 in 131 1/3 innings in the minors a year ago and was demoted to Double-A Trenton. While his results have been better this season with Triple-A Scranton/Wilkes-Barre, his lack of command has remained such a problem that team brass recently decided to make him a reliever.

Although he’s on board with the decision, he admitted it’s not ideal.

“There’s nothing I could do about it,” the former Grand Street Campus (Brooklyn) star said. “I’ve been a starter since I signed, but you kind of understand the situation. They were saying there’s more opportunity out of the bullpen.”

Whatever the reason, he was pleased to get the call after giving up a run in two innings in a pair of appearances out of the bullpen for SWB.

“Last year was definitely a rough one for me,” said Betances, drafted by the Yankees in the eighth round of the 2006 draft, but paid like a first-rounder in order to get him to sign. “I’m happy to be here. I feel confident. I feel like what I’ve had the last five or six appearances have been really good and that I’m going in the right direction.”