John Riordan: Tiafoe is the champion tennis and America need

Frances Tiafoe is the first black American since Arthur Ashe 50 years ago to reach the men's semi-finals of the US Open.

AMERICAN DREAM: Frances Tiafoe reacts after defeating Andrey Rublev, of Russia, during the quarterfinals of the US Open.
Picture: AP Photo/Mary Altaffer

What a week for eras ending...

Did the last vestiges of the great tennis empires of this century finally crumble away on Monday afternoon in New York?