
Matteo Berrettini of Italy, Casper Ruud of Norway, and Andrey Rublev of Russia had all won in Friday’s opening matches in Boston before Team World won the doubles to cut the deficit to 3-1.
With two points awarded for a victory on the second day of the tournament and three points awarded for each match on the final day—a format that Roger Federer helped design—Europe is just one victory away from reclaiming the championship.