Djokovic said. "But it just happens, one of those days". "Completely different conditions today".
"I mean, she's the number one player in the world".
After dropping the first set, Djokovic displayed his frustration by banging his racquet against his foot until it crumpled.
Djokovic and Fognini then failed to serve out for the opener as Rojer and Tecau won the 10th game on a deciding point to make it all tied at 5-5.
But fresh from his win over Nick Kyrgios, Kohlschreiber went on the attack against a sluggish Djokovic. And he knows how to win matches?
Kohlschreiber posted his first victory over a top-ranked player, advancing to a fourth-round match against France's Gael Monfils.
Novak Djokovic had no answer
Nadal took his record against the world No. 26 to 7-0 in emphatic style, never facing a break point in a match lasting an hour and 16 minutes.
Nadal, a three-time victor of the Indian Wells title, next faces Serbian qualifier Filip Krajinovic, who ousted 14th-seeded Russian Daniil Medvedev 6-3, 6-2. "I must admit I was thinking about it, but it's part of our world, and we just have to bounce back very quickly". I've got a lot of messages.
The match with Federer will be another stern test for Wawrinka, a three-time Grand Slam champion who is climbing back up the rankings as he continues his return from double knee surgery. "So just things worked out for me", Bencic said. I was able to mix up my game, cover my serve, be unsafe on the return - maybe take some rhythm away from Stan.
The 22-year-old will next face Canadian teenager Denis Shapovalov, who continued his run of dominant serving without being broken on his way to an impressive 6-4 6-2 win over 10th seeded Croat Marin Cilic. "For me, the plan worked".
Britain's Kyle Edmund beat Radu Albot 6-3 6-3 to reach the last 16.
He will play Serbia's Filip Krajinovic next after Krajinovic, ranked 113, beat 15th seed Daniil Medvedev 6-3 6-2.