Marin Cilic, the 2014 U.S. Open champion who lost to Federer in the final of this year's Australian Open, eased to a 7-5, 6-3 victory over Marton Fucsovics. "Back in the day I used to play six matches in the row".
That levelled the score at 30-30 and Wozniacki won two out of the next three points she needed to take the third set and the match in the $16 million joint WTA/ATP hardcourt tournament.
Roger played much better than in the second round against Delbonis, losing serve once at the start of the match and breaking Filip five times from eight opportunities he created.
His title defence got off to a soggy start on Saturday night when play was suspended because of rain showers with Federer up a set and tied 2-2 in the second.
Federer, who regained the world number one ranking last month, is on a quest to make history in the California desert by winning an unprecedented sixth Indian Wells title.
Federer and Djokovic both came into the tournament seeking to become the first six-time victor of the event.
The Serbian was making his first comeback after undergoing elbow surgery earlier this year.
"I mean, a bit of both, I guess", he said. Djokovic scrambled to win the second set on Sunday but the rust from the layoff was evident as he made 62 unforced errors overall.
Wozniacki hit two aces and won 64 percent of her first-serve points in the two hour, 17 minute match.
He then took Federer to deuce in the next game.
Frenchman Gael Monfils survived a match point before beating big-serving American John Isner 6-7 (5-7) 7-6 (7-3) 7-5 in a contest that had only one break.
"I actually was explosive out there today and I felt good", he said. So when you play that way and you feel that way, you can't right away think, "Oh, who would I be playing in the semis or in the finals"? Let's just say Jeremy Chardy is going to get his full attention over the next couple of days. The win sets up a third round showdown with Spaniard David Ferrer who defeated Tennys Sandgren of the U.S. 6-2, 7-6 (7/3).