The Mariners designated Misiewicz for assignment Sunday, Corey Brock of The Athletic reports.
EDGE Analysis
Misiewicz has resided at Triple-A Tacoma since being optioned June 10, but he'll now lose his spot on the 40-man roster after the Mariners needed to clear a spot for outfielder Jack Larsen, who was called up from Double-A Arkansas to enter the starting lineup for Sunday's game in Houston. Since moving down to Tacoma, Misiewicz turned in a 3.65 ERA while striking out 13 over 12.1 innings, so the Mariners could have a tough time passing him through waivers.