And later he reached the Wimbledon semifinals, losing a almost seven-hour-long marathon to Kevin Anderson, who is his teammate this week on Team World.
"I'm just happy to get the win and we defended the title, that's the most important thing".
World number two Roger Federer says he is mulling a return to the European clay-court season in 2019 following a two-year absence.
"We need some matches to get going, but today I was very clear in my game plan and I got wonderful support from my team".
Kevin Anderson took down Novak Djokovic for a second straight night as Team World rallied to win the final two matches and reel Team Europe's lead back to 7-5 after the second day of the Laver Cup in Chicago Saturday.
During the contest, Djokovic accidentally smashed a forehand into Federer's lower back, much to the amusement of the crowd.
Roger Feder and Novak Djokovic celebrate a won point
Being separated this week while he competes in the Laver Cup has been hard.
"Kevin was so well prepared for this, we needed this bad", said World captain John McEnroe.
Federer's tennis brain is like no other, he has mastered the tactical side of the game and it comes as no surprise that Team Europe's stars have turned to the Swiss Icon for advice during hard times on court. But, the American and South African pair came back stronger in the second set and took it 6-3 to take the game into a tie-breaker.
The Swiss superstar comfortably dispatched a unsafe threat in Nick Kyrgios earlier in the day and Alex Zverev recorded a victory over John Isner in a nail-biter that ended 10-7 in the deciding tie-breaker, leaving Team Europe on 7 points.
Federer and Zverev looked set to give Europe a commanding 10-5 lead in the match after taking two match points in the super tiebreaker at the United Center.
Check Out the iPhone XS' Weirdo Battery
At the Century City store in Los Angeles, roughly 50 people were lined up for the phones before business hours. Those who pre-order the iPhones will have it shipped within 3-5 business days from September 28.