Team World took a big step towards retaining their Laver Cup title as they extended their advantage over Team Europe to 10-2 on Saturday, with Americans Taylor Fritz and Frances Tiafoe leading the charge.

John McEnroe's team now require one win from their four matches on Sunday to reach the 13-point mark and claim their second crown, but with each victory worth three points on the final day Team Europe still have some hope.

Team World arrived at Vancouver's Rogers Arena with a 4-0 lead after four wins on the first day of the competition.

With each victory worth two points on the second day, world No. 8 Fritz put Team World in a commanding position after a thrilling 6-2,7-6(3) win over Russian Andrey Rublev.

"Any type of team environment, I feel it always elevates my game," said Fritz, who avenged his Monte Carlo semi-final defeat by Rublev earlier this year. "I feel like my record in team events is strong because I have a team cheering for me."

Casper Ruud pulled a win back for Bjorn Borg's Team Europe with a 7-6(6), 6-2 victory over American Tommy Paul, but Tiafoe defeated Poland's Hubert Hurkacz 7-5, 6-3 to give his team an 8-2 lead.

Local hero Felix Auger-Aliassime teamed up with American Ben Shelton for a 7-5, 6-4 victory over Hurkacz and Gael Monfils to cap off another good day for the defending champions.