SEATTLE -- The Seattle Mariners continued their bullpen shuffle on Sunday, calling up right-hander David McKay from Triple-A Tacoma.

McKay, a 24-year-old reliever, was acquired from Kansas City on March 20, 2018, and was briefly in the Majors this season after being selected from Tacoma on March 30. But he was sent back to Triple-A on April 1 without appearing in a game.

”It’s good to be back this year,” McKay said Sunday. “Hopefully, I get to throw this time.”

When he makes his Mariners debut, he’ll be the 21st reliever the club has used this season.

The move is the latest for a bullpen in flux. The Mariners used five relievers on Saturday night in an 18-4 loss to Minnesota, prompting McKay’s latest callup.

In 14 appearances with Tacoma this season, McKay is 2-0 with an ERA of 5.91. Since May 1, he’s thrown 6 2/3 innings, allowing one hit and six walks while striking out 14 with a 4.05 ERA.

”He’s still a little inexperienced out in the bullpen, but he had a good Spring Training,” Mariners manager Scott Servais said. “He does it a little bit differently. He’s got a decent breaking ball. He’ll pitch up in the zone with the fastball. He has thrown strikes, so we’ll see. We’ll see if we need him today.”

”Even if I haven’t thrown in two days, I’m always anxious [to get into a game],” McKay said.

The Mariners designated 29-year-old reliever Mike Wright for assignment, making room for McKay.

When a player's contract is designated for assignment -- often abbreviated "DFA" -- that player is immediately removed from his club's 40-man roster, and 25-man roster if he was on that as well. Within seven days of the transaction (it was previously 10 days), the player must either be traded, released or placed on irrevocable outright waivers.

Wright made seven appearances for the Mariners this season, posting a 9.00 ERA in 11 innings. He pitched two innings Saturday night in the loss to Minnesota, allowing four runs.

But Servais left the door open for the right-hander to be back with the organization.

“If he clears waivers, we’d like to have him back, go to Tacoma and continue to work on the things that we threw at him,” Servais said. “He’s starting to get his stuff back. This is a guy who threw in the upper 90s at certain points of his career, and he’s starting to get back up there.”