With this victory, Tiafoe moves forward in the Cincinnati Open, while Musetti begins preparations for the US Open.
After his win, Tiafoe channeled NBA superstar LeBron James with the "too small" gesture, a popular celebration in the NBA.
Tiafoe, a huge NBA fan, has shown his admiration for LeBron in the past, often wearing NBA jerseys.
We believe tennis needs more moments like this! The "too small" gesture is becoming as iconic as other famous tennis celebrations.
Tiafoe and Musetti have faced off five times, with Tiafoe winning three of those matches. The rivalry is heating up!
Musetti, now preparing for the US Open, might use this loss as motivation in their future matchups.
Stay tuned to Sports Illustrated's Serve on SI for the latest tennis news and insights from the Cincinnati Open and beyond
Check out Taylor Fritz's heated exchange with an umpire during the Cincinnati Open. The drama continues!