It's no secret that San Antonio Spurs big man Tim Duncan is getting up there in years. On Sunday night, he became the first player in NBA history to win an NBA title as a starter in three different decades.

He also broke his own NBA Finals record, becoming the oldest player (38-years-old) to average 15.0+ points and 10.0+ rebounds in the Finals.

Duncan averaged 15.4 points and 10.0 rebounds in this year's Finals.

Duncan set the record last season as a 37-year-old.