After 19 seasons and five championships with the Spurs, the GOAT still has a competitive edge. Kickboxing instructor Jason Echols recently shared a couple short videos of he and Duncan during a training session. Both Duncan and Echols got in their share of kicks and punches.
Duncan was arguably the best player in the Spurs' franchise history and he was also a prize-winning swimmer in his youth. Now, these kickboxing videos show Duncan's good at that too. Is there anything he can't do?
Echols recently uploaded video of another Spurs legend. David Robinson has trained with Echols too.
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