Robertson was designated for assignment by the Mariners on Friday. In order to make room for Friday's starting pitcher against the A's, Seattle DFA'd Robertson in a corresponding move. Robertson spent two weeks with the Mariners in July, going 5-for-19 from the plate during nine games of action. The 30-year-old has had a decent season with Tacoma, but is seen as expendable by the organization.
Robertson was optioned to Triple-A Tacoma on Wednesday. Robertson was promoted just before the All-Star break and appeared in nine games, logging 19 at-bats and recording five hits, including one double. The 30-year-old will return to Triple-A, as the Mariners bring up veteran outfielder Nori Aoki in his place.
Robertson, in his second start since his callup earlier this week, doubled and hit a run-scoring single Thursday in a loss at Kansas City. The Mariners had been carrying 13 pitchers but wanted to get their position players more rest, so Robertson got the call. He played 107 games with the Angels in 2014-15. Robertson will get a start here and there to give outfielders rest, but probably won't get too many at-bats. If the Mariners choose to add another pitcher again or if Nori Aoki is recalled, Robertson likely will be sent to Triple-A over utilityman Shawn O'Malley, who plays infield and outfield.
Robertson was called up from Triple-A Tacoma on Tuesday, Greg Johns of MLB.com reports. The 30-year-old didn't exactly kick the door down at Tacoma, batting .262/.327/.391 in 73 games this season, but he can help out at all three outfield positions and play second base in a pinch. While Robertson put up some decent stolen base totals early in his minor league career and has seven steals this year, it's hard to imagine he'll see the field enough to contribute much in any category.
Robertson cleared waivers Wednesday and has been outrighted to Triple-A Tacoma, Greg Johns of MLB.com reports. Robertson was claimed off waivers by the Mariners earlier in the offseason, but was designated for assignment after the club finalized a deal with Hisashi Iwakuma. By virtue of not being claimed off waivers, he'll now head to Triple-A Tacoma, where the veteran outfielder will likely begin the season.