Tennis: Federer avenges Australian Open defeat, out-of-sorts Nadal also through

INDIAN WELLS, California (REUTERS) - Roger Federer earned a modicum of revenge against Andreas Seppi in a 6-3, 6-4 triumph that advanced the four-time champion to the fourth round of tennis' BNP Paribas Open on Tuesday.

The Swiss great lost to the Italian at the Australian Open in January but allowed no such repeat as he lost just one service game and needed 82 minutes to beat Seppi.

Rafael Nadal also advanced with a sloppy triumph over American Donald Young 6-4, 6-2. The Spaniard , a three-time champion at Indian Wells, looked out of sorts in the opening set slamming an easy overhead into the net to give Young an early break and then later double-faulting to hand over another.

But the 47th ranked Young was no better at finding the target saving just two of eight break points, as a fist-pumping Nadal walked off Stadium court at the Indian Wells Tennis Garden with the victory.

While the opening set was a comedy of unforced errors the second saw Nadal flash some of his top form as he raced to a 5-1 lead, closing out the match in a tidy 80 minutes.

"It's true that I had a few mistakes. I was able to find solutions," he told reporters. "I've played a lot of good tournaments here, good results.

"I am confident and I hope that tomorrow I can play a good match."

Ninth seeded Czech Tomas Berdych had earlier kicked off another sunny day of action with a straight-forward 6-4, 6-2 win over American Steve Johnson.

Jack Sock, however, will carry the American flag into the round of 16 after rallying past 15th-seeded Spaniard Roberto Bautista Agut 3-6, 6-3, 6-2.

France's 13th seed Gilles Simon scored a comfortable 6-2, 7-5 victory over German qualifier Michael Berrer, while Czech Lukas Rosol was a 6-4, 6-7 (4-7), 7-6 (7-3) winner over Dutchman Robin Haase, and Spain's Tommy Robredo beat 11th seed Grigor Dimitrov 6-4, 1-6, 7-5 in the final match.