Keuchel signed a contract with the Lotte Marines of Nippon Professional baseball on July 30, The Mainichi reports.

Keuchel elected free agency Wednesday after clearing waivers, Curt Hogg of the Milwaukee Journal Sentinel reports.

The Brewers designated Keuchel for assignment Sunday, Todd Rosiak of the Milwaukee Journal Sentinel reports.

Keuchel is listed as the Brewers' scheduled starter for Tuesday's game against the Rockies at Coors Field.

The Brewers officially added Keuchel to the 40-man roster and 26-man active roster ahead of his scheduled start Wednesday against the Rangers, Adam McCalvy of MLB.com reports.

The Brewers plan to add Keuchel to the roster and have him start Wednesday's game against the Rangers at American Family Field, Kennedi Landry of MLB.com reports.

The Brewers acquired Keuchel from the Mariners on Tuesday in exchange for cash considerations, Mark Feinsand of MLB.comreports.

The Mariners released Keuchel on Monday.

Keuchel, who fired five scoreless innings for Triple-A Tacoma on Sunday during which he allowed three hits and recorded three strikeouts, could be a candidate to temporarily fill the No. 5 spot in the Mariners' starting rotation, Shannon Drayer of 710 ESPN Seattle reports.

Keuchel signed a minor-league contract with the Mariners on Tuesday, Daniel Kramer of MLB.com reports.