Muckenhirn cleared waivers Friday and was sent outright to Triple-A Tacoma.

The Mariners designated Muckenhirn for assignment Wednesday.

The Mariners acquired Muckenhirn from the Mets on Monday in exchange for right-handers Chris Flexen and Trevor Gott, Ken Rosenthal of The Athletic reports. Seattle optioned him to Triple-A Tacoma.

Muckenhirn was designated for assignment Monday, Will Sammon of The Athletic reports.

Muckenhirn was optioned to Triple-A Syracuse on Saturday, Bob Nightengale of USA Today reports.

The Mets recalled Muckenhirn from Triple-A Syracuse on Friday, Anthony DiComo of MLB.com reports.

Muckenhirn could be in line for a promotion to the majors, Mike Puma of the New York Post reports.

The Mets optioned Muckenhirn to Triple-A Syracuse on Monday.

The Mets recalled Muckenhirn from Triple-A Syracuse ahead of the second game of Sunday's doubleheader with the Nationals, Abbey Mastracco of the New York Daily News reports.

Muckenhirn was optioned to Triple-A Syracuse by the Mets on Thursday, Anthony DiComo of MLB.com reports.