Melbourne - Novak Djokovic was in the zone with a dazzling demolition of Ryan Harrison as he stormed into the third round of the Australian Open on Wednesday.
The world No 1 was in irresistible form, outclassing the young American 6-1, 6-2, 6-3 in just one hour 31 minutes of high-class tennis on Rod Laver Arena.
Djokovic, a three-time winner and going for three straight Australian titles, will next play Czech journeyman Radek Stepanek in the last 32.
"I tried to focus on the start and I knew that he had nothing to lose and would come out with his big serves, but I managed to make some very important early breaks at the start of the match," Djokovic said.
"I was a set up after 20 minutes and it was a mental advantage, I felt much more comfortable on the court.
"I don't think he was playing at his best, it was probably the occasion playing on the centre court, but I wish him all the best, I think he has a good future."
Djokovic jumped out of the blocks and won 12 of the first 13 points to put the young American on the back foot and down an early service break.
He broke Harrison again in the sixth game and wrapped up the opening set in just 20 minutes.
The Serb top seed carried on where he left off breaking the American's opening service to win seven of the first eight games.
Djokovic broke Harrison's serve for a fourth time to carry on the blitz and raced to a two sets to love lead via three set points in 30 minutes.
Harrison was broken again in the opening game of the final set as Djokovic closed in on victory.
But the young American refused to give in and held three service games under pressure, to the appreciation of the centre court crowd.
Djokovic again put Harrison's service under pressure and took out the match on his second match point.
Collated results from day three of the Australian Open on Wednesday:
Women's singles
Second round
Agnieszka Radwanska (POL x4) bt Irina-Camelia Begu (ROM) 6-3, 6-3
Angelique Kerber (GER x5) bt Lucie Hradecka (CZE) 6-3, 6-1
Kirsten Flipkens (BEL) bt Klara Zakopalova (CZE x23) 6-1, 6-0
Julia Goerges (GER x18) bt Romina Oprandi (SUI) 6-3, 6-2
Valeria Savinykh (RUS) bt Dominika Cibulkova (SVK x15) 7-6 (8/6), 6-4
Li Na (CHN x6) bt Olga Govortsova (BLR) 6-2, 7-5
Ekaterina Makarova (RUS x19) bt Stephanie Foretz Gacon (FRA) 6-3, 6-3
Madison Keys (USA) bt Tamira Paszek (AUT x30) 6-2, 6-1
Zheng Jie (CHN) bt Samantha Stosur (AUS x9) 6-4, 1-6, 7-5
Sorana Cirstea (ROM x27) bt Kristyna Pliskova (CZE) 1-6, 6-3, 6-2
Maria Sharapova (RUS x2) bt Misaki Doi (JPN) 6-0, 6-0
Ana Ivanovic (SRB x13) bt Chan Yung-Jan (TPE) 7-5, 1-6, 6-4
Heather Watson (GBR) bt Ksenia Pervak (KAZ) 4-6, 7-6 (9/7), 6-2
Jelena Jankovic (SRB x22) bt Maria Joao Koehler (POR) 2-6, 7-6 (7/5), 6-2
Marion Bartoli (FRA x11) bt Vesna Dolonc (SRB) 7-5, 6-0
Venus Williams (USA x25) bt Alize Cornet (FRA) 6-3, 6-3
Men's singles
Second record
Nicolas Almagro (ESP x10) bt Daniel Gimeno-Traver (ESP) 6-4, 6-1, 6-2
Kei Nishikori (JPN x16) bt Carlos Berlocq (ARG) 7-6 (7/4), 6-4, 6-1
Sam Querrey (USA x20) bt Brian Baker (USA) 6-7 (2/7), 1-1 ret
Jurgen Melzer (AUT x26) bt Roberto Bautista Agut (ESP) 6-7 (4/7), 6-3, 6-7 (3/7), 6-3, 6-2
Stanislas Wawrinka (SUI x15) bt Tobias Kamke (GER) 6-3, 7-6 (7/4) ret
Jerzy Janowicz (POL x24) bt Somdev Devvarman (IND) 6-7 (10/12), 3-6, 6-1, 6-0, 7-5
Tomas Berdych (CZE x5) bt Guillaume Rufin (FRA) 6-2, 6-2, 6-4
David Ferrer (ESP x4) bt Tim Smyczek (USA) 6-0, 7-5, 4-6, 6-3
Marcos Baghdatis (CYP x28) bt Tatsuma Ito (JPN) 3-6, 6-3, 6-2, 6-2
Evgeny Donskoy (RUS) bt Mikhail Youzhny (RUS x23) 3-6, 7-6 (7/4), 6-2, 3-6, 6-3
Julien Benneteau (FRA x32) bt Edouard Roger-Vasselin (FRA) 4-6, 7-5, 7-6 (7/5), 7-6 (7/5)
Radek Stepanek (CZE x31) bt Feliciano Lopez (ESP) 6-2, 6-2, 6-4
Kevin Anderson (RSA) bt Andrey Kuznetsov (RUS) 6-1, 7-5, 6-4
Fernando Verdasco (ESP x22) bt Xavier Malisse (BEL) 6-1, 6-3, 6-2
Novak Djokovic (SRB x1) bt Ryan Harrison (USA) 6-1, 6-2, 6-3
Janko Tipsarevic (SRB x8) bt Lukas Lacko (SVK) 6-3, 6-4, 3-6, 4-6, 7-5