Rafael Nadal began his bid for a men's record 21st Grand Slam title with victory over Marcos Giron in the Australian Open first round.
Sixth seed Nadal, the only former Melbourne champion left in the men's draw, beat American Giron 6-1 6-4 6-2.
The Spaniard is making his return to Grand Slam tennis after a five-month layoff with a foot injury.
"I have had very challenging months, tough moments and a lot of doubts," he said on court.
Nadal is the only member of the 'Big Three' competing in Melbourne after nine-time Melbourne champion Novak Djokovic's visa was cancelled on Sunday.
His sole Australian Open title came in 2009 but he won the Melbourne Summer Set in the build-up to the tournament.
He was rarely troubled against Giron, hitting 34 winners to help set up a second-round meeting with either home favourite Thanasi Kokkinakis or Germany's Yannick Hanfmann.
"You never know when you come back from injuries - things are difficult and you go day by day," Nadal, 35, said.
"But I'm staying positive. I won three matches and a title here last week."
BDST: 1440 HRS, JAN 17, 2022