Frances Tiafoe defeated Rafael Nadal at the US Open.
Frances Tiafoe broke Rafael Nadal's 22-match Grand Slam winning streak on Monday.
Tiafoe "lost it in the locker room" after LeBron James tweeted about him.
During Sierra Leone's civil war in the 1990s, his parents moved to the U.S.
Constant helped develop a youth tennis complex in Maryland, where he worked as a maintenance guy.
The twins were born in 1998. Soon, they'd play rackets where their dad worked for hours.
The hope was that one day a college scholarship would result.
Tiafoe has only reached the quarterfinals of a Grand Slam tournament once, at the 2019 Australian Open.
Tiafoe threw his racket and put his hands on his head after Nadal's final backhand.