New Seattle Mariners hitting coach Kevin Seitzer explains how he and Edgar Martinez plan to help Julio Rodríguez maximize his superstar potential.

Seattle Mariners center fielder Julio Rodriguez had a great tribute to Ichiro ... a 10-time All-Star and Gold Glove Award winner, was a nearly unanimous Hall of Fame selection last month.

Julio Rodriguez supplied the big highlight during Wednesday's Cactus League game, launching a missile of a grand slam.

The Mariners lost to the Royals 9-6 in spring training action Wednesday, but not before Julio Rodriguez blasted his first two ...