The Mariners optioned Rivas to Triple-A Tacoma on Sunday.

EDGE Analysis

The 27-year-old was competing for a spot on Seattle's Opening Day bench but will instead begin the campaign back at Tacoma. Rivas had an .865 OPS in 63 games at Triple-A last year but struggled over 86 plate appearances in the big leagues with a .233/.333/.274 slash line.