Peterson will be limited for a few days with a leg issue, the Seattle Times' Ryan Divish reports. It's still early in camp so this shouldn't affect Peterson's availability for the start of the season. He will open the year at Triple-A Tacoma, but could receive a promotion this summer to provide right-handed power off the bench.
Peterson is expected to begin the season as the starting first baseman at Triple-A Tacoma, Bob Dutton of the Tacoma News Tribune reports. Peterson began the season at the Double-A level last season, but he ultimately got his first extended look at Triple-A and hit .253 with eight home runs in 46 games there. The 24-year-old was added to the 40-man roster over the offseason so he may get a chance in the majors at some point in 2017, but at this point it looks like he'll get the chance for regular at-bats in the minors to start out the year.
Peterson was added to the Mariners' 40-man roster on Friday. Peterson got off to a hot start with Triple-A Tacoma but cooled down enough that he finished with a .253/.307/.438 line in 192 plate appearances. He should figure into the Mariners depth at the corner infield positions heading into 2017.
Peterson, 24, is slashing .305/.352/.549 with five homers and a 24:5 K:BB in 82 at-bats since being promoted to Triple-A Tacoma. Peterson struggled during a brief taste of Triple-A back in 2015, but he appears to be in total control at the plate this time around. Given Adam Lind's struggles in the big leagues this year (.231/.264/.450), Peterson could serve as an internal upgrade, especially if the Mariners are successful in unloading Lind before the trade deadline. However, the acquisition of 1B/DH prospect Dan Vogelbach from the Cubs earlier this week also complicates matters, as Vogelbach is a better prospect than Peterson and has more experience at Triple-A, so he could be the one to receive a promotion in the coming weeks.
Peterson has been promoted to Triple-A Tacoma, seattlepi.com reports. The 12th overall pick in the 2013 entry draft, Peterson has bounced back strong from a disappointing 2015 campaign, posting a .271/.340/.466 slash line in 73 games for Double-A Jackson. He played four games with Triple-A Tacoma last season but has otherwise spent most of his minor league career at the High-A or Double-A levels. Though the Mariners likely want to keep him in Triple-A ball for an extended period, Peterson might still emerge as a candidate for a September call-up.