If you think tennis is for the young and agile, think again. Lucy Dettmer, one of the greatest Masters tennis players of all time, is shattering sports stereotypes -- at 86, she's still swinging the racket. 

Dettmer, the reigning national champion in both singles and doubles, is still receiving corporate sponsorship, which comes with rackets, strings and shoes. 

At 74, her talent led her to be recruited -- to play at a college! But that's not all she's played. Dettmer has matched up against Regis Philbin a couple of times. 

Dettmer talks with Growing Bolder about her 90-year-old tennis partner and her future in tennis. 

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tennis - national champion - senior - regis philbin - shattering stereotypes - masters tennis - lucy dettmer - women - athlete - greatest - college