6 athletes who played 20 years with a team before moving on

Will Tom Brady join these six athletes who spent their first 20 years with a franchise before leaving for another team?

Harmon Killebrew

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Harmon Killebrew spent the first 21 seasons of his career with the same franchise (Washington Senators/Minnesota Twins. He hit 559 home runs with it. Killebrew signed with the Kansas City Royals in 1975 and hit 14 home runs in his only season with the Royals, including one against the Twins in his final trip to Minnesota.