Mariners News: Updating the M’s Prospects in the AFL

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Mar 15, 2015; Peoria, AZ, USA; Seattle Mariners third baseman D.J. Peterson (46) bats against the Los Angeles Dodgers at Peoria Sports Complex. Mandatory Credit: Joe Camporeale-USA TODAY Sports

D.J. Peterson – 3B

The Mariners third best prospect has shined in the early part of the AFL season. D.J. Peterson is hitting .280 with 1 double, 2 home runs and a team leading 7 RBI through 7 games. He has registered a .333 on base percentage and slugged .560 across 25 at bats.

Peterson entered the season ranked as the 50th best prospect in all of baseball according to, but he failed to live up to the hype. The 23-year-old started the year with the M’s double-A affiliate in Jackson. Peterson hit a measly .223 with 7 home runs and 44 RBI through 93 games. Despite his ugly stat line, Seattle opted to promote him to Tacoma in early August. Peterson went 3 for 14 with the Rainiers before an Achilles injury ended his season.

The former top prospect definitely took a step backwards in 2015, but his stock is once again rising in the Arizona heat. Peterson is a powerful right-handed bat, and I expect him to make his Mariners debut at some point during the 2016 season. First base seems like the most likely position for D.J. at the next level.

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