Roger Federer barely broke sweat as he clinched a record-equalling 59th win at the French Open, breezing past Slovakia's Lukas Lacko in the opening round.
The 2009 champion eased to a 6-2 6-4 6-2 win against the world No 88 on Court Philippe Chatrier to kick-off his 16th straight Roland Garros with an 84-minute master class.
His 59 career wins at the tournament have taken him level with eight-time champion Rafael Nadal.
The 17-time major winner arrived in Paris this week with his expanded family in tow following the birth of his second set of twins, Lenny and Leo, nearly three weeks ago.
His four-year-old daughters, Charlene and Myla, were in his box for the start of his match.
Federer lost his first match since the birth of his sons in Rome to Frenchman Jeremy Chardy but was never troubled on Sunday, perhaps not surprisingly given Lacko has not won a match on clay for three years.
He had not even contested a match on the surface since Roland Garros last year and was forced to fight hard for the games he did win.
Lacko saved six of the 11 break points he faced but did not create a single one on the Federer serve, winning just nine points on the fourth seed's serve in the match.
Federer won five games in a row to win the first set and his only frustration would have been that it took him an hour and 24 minutes to wrap up victory.
"It was important for me to attack and stay aggressive," said Federer. "I also served well."
Federer will face either Portugal's Gastao Elias or Diego Sebastian Schwartzman of Argentina for a place in the last 32.
One of the most intriguing first round match-ups pitted eighth seed Milos Raonic against 19-year-old Australian wild card Nick Kyrgios.
Raonic is the youngest man in the top 10 of the tennis rankings, and Kyrgios was the youngest man in this year's French Open draw at 19.
The teenager looks set to have a bright future but he found Raonic too tough, the Canadian winning 6-3 7-6 (7-1) 6-3.
"I was a bit nervous going out in the first set. That's normal, I think," said Kyrgios, a former top-ranked junior player who won the junior Australian Open in 2013.
There was also a straight-sets victory for home hope Jo-Wilfired Tsonga, who defeated fellow Frenchman Edouard Roger-Vasselin 7-6 (7-4) 7-5 6-2.
Wimbledon semi-finalist Jerzy Janowicz of Poland ended his nine-match losing streak by overcoming 33-year-old Victor Estrella from the Dominican Republic 6-1 6-4 6-7 (6-8) 6-4.
Tenth-seeded John Isner hit 23 aces and got the only break of serve he needed in the third set of a 7-6 (7-5) 7-6 (4) 7-5 victory over 130th-ranked Pierre-Hugues Herbert to reach the second round.
The 6-foot-10 American took two hours to eliminate Herbert, a wild-card entry from France.
World No 15 Mikhail Youzhny of Russia and veteran Czech Radek Stepanek also advanced.