Drew Pomeranz's trade to the Cubs comes after an upward mobility clause in his contract requiring the Mariners to either promote him or trade him to a big league team.
Danner's potential as a depth pitcher is intriguing for Seattle, as they look for fresh arms throughout the long MLB season, especially given his solid minor league numbers.
Nick Raposo, after clearing waivers, has been outrighted to Triple-A Tacoma, providing the Mariners with additional catching depth as they navigate their roster.