good to see that he is hanging on for love of the game. If legacy was so important, then guys over 30 should just retire as inevitably their career winning percentages would take a dive....for example their H-H against younger players would surely drop, just like that Roger lost his winning H-H against Djoker when he was 34, and surely he'll end up with more losing H-H against more youngsters as well.
Rafa also could've hung up his racquet earlier when he had winning H-H against almost all others.