"People under 70 say: 'Thank goodness I lived another year.'

"People between 70 and 90 say: 'Thank goodness I lived another month.' I count every day and say: 'Thank God I lived another day.'"

Stanislavskyi said the secret to his longevity is a mixture of good genes and regular exercise.

He starts each morning by performing a series of push-ups and pull-ups. Besides tennis, Stanislavskyi is a passionate fan of swimming and skiing, and dreams of making a parachute jump.

He says his ultimate goal is to live to 100 years old and take on Roger Federer.

Reuters