From legends to eternity: The tennis records that seem impossible to break

Some tennis records seem to touch the realm of the impossible. From the great names who set them to the eternal challenge of breaking them, these feats defy time and history. Check out the players and the stories behind them.

• Rafael Nadal's net worth: How much money does the Spanish tennis living legend have?
• Venus Williams' net worth: How rich is the legend of women's tennis?