Seattle Mariners finalizing long-term extension with breakout rookie Julio Rodriguez, sources say 12:32 PM ET ESPN Seattle Mariners slugger Julio Rodriguez has parlayed his breakout rookie season into a new deal, as the sides are finalizing a massive long-term contract extension, sources told ESPN's Jeff Passan on Friday. Rodriguez, 21, is the first rookie in Mariners history to record 20 home runs and 20 stolen bases in the same season, reaching the milestone Wednesday when he hit a solo shot in the eighth inning against the Washington Nationals . He is also the fourth rookie in American League history to accomplish the feat since 2000, joining Mike Trout (2012), Andrew Benintendi (2017) and Randy Arozarena (2021). Editor's Picks 1 Related He also was the runner-up to Juan Soto at the Home Run Derby this year while making the AL All-Star team in his debut season. Rodriguez is hitting .269 with 64 RBIs and a .799 OPS in 108 games for the Mariners, who currently hold the third wild-card spot in the AL.