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Not only is Dustin Pedroia now the Red Sox’ longest-tenured player, he’s also just one of 11 active major league players entering at least their 12th consecutive season with the same team. In fact, every player on the list has spent the entirety of their big league career with only one franchise, a highly uncommon distinction in today’s game. Among this group, Pedroia (5.6) had the second-highest WAR in 2016, behind Tigers ace Justin Verlander (6.6).
Dustin Pedroia
Red Sox, 11th season
Top WAR: 7.9 in 2011 — Career highs in home runs (22) and RBIs (91)
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    Joe Mauer
    Twins, 13th season
    Top WAR: 7.8 in 2009 — MVP season; led AL in batting average, on-base percentage and slugging percentage
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    Yadier Molina
    Cardinals, 13th season
    Top WAR: 6.9 in 2012 — Career-high 22 home runs and 48-percent caught stealing rate
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    David Wright
    Mets, 13th season
    Top WAR: 8.3 in 2007 — 30-30 season, plus a Gold Glove award
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    Matt Cain
    Giants, 12th season
    Top WAR: 6.3 in 2009 — 10 of 14 wins came before All-Star break
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    Felix Hernandez
    Mariners, 12th season
    Top WAR: 7.1 in 2010 — MLB-best 2.27 ERA leads to Cy Young award
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    Justin Verlander
    Tigers, 12th season
    Top WAR: 8.4 in 2011 — Pitching Triple Crown, Cy Young and AL MVP
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    Adam Wainwright
    Cardinals, 12th season
    Top WAR: 6.3 in 2010 — 20 wins and a 1.05 1 WHIP
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    Ryan Zimmerman
    Nationals, 12th season
    Top WAR: 7.3 in 2009 — Personal-best 33 home runs; only career Gold Glove
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    Andre Ethier
    Dodgers, 11th season
    Top WAR: 3.8 in 2012 — 2nd in NL in right-field fielding percentage
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    Glenn Perkins
    Twins, 11th season
    Top WAR: 2.1 in 2013 — 26 saves (career best) and 0.926 WHIP
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