Russia's ex-world number one Daniil Medvedev paid the price for an early meltdown as he stumbled out of the French Open in a 7-5 6-3 4-6 1-6 7-5 first-round loss to Cameron Norrie, forgetting to shake the umpire's hand as he left the court on Tuesday.
Medvedev's composure disintegrated as he surrendered eight consecutive games after opening a 3-1 lead in the first set, the 29-year-old's frustration boiling over in a series of animated gestures towards his bewildered coaching team.
With the vocal support of the Simonne Matthieu court crowd, however, the 2021 US Open champion found his groove despite the windy conditions to win the third set and bag the fourth easily after claiming a remarkable 16 consecutive points.
Norrie, who reached the Geneva Open semi-finals last week, was out of ideas on how to outwit the elastic Medvedev, who broke for 2-1 in the decider with a lightning-fast passing shot.
The Briton, however, found the resources to break back before wrapping up victory on his first match point to hand 11th seed Medvedev his sixth first-round loss at Roland Garros.
"Couple of days or maybe one week, two weeks before the next tournament, I'm going to be feeling not good," said Medvedev, who is hoping that he will soon get into his groove on grass.
"I'm going to change the surface, so in your game you're not going to feel not good. Maybe (the) next (Wimbledon warm-up) tournament is not going to be easy.
"Then you wait, work hard, and wait for the moment where it goes up again."
The Russian apologised for forgetting to shake chair umpire Renaud Lichtenstein's hand.
"I think I forgot. I thought about this when I walked out of the court. There was no problem, and I love Renaud. Walking already five minutes after the match I was, like, 'did I forget the handshake?'," Medvedev said
"I thought maybe not. So when I see him, I'm just going to say, I mean, I was so disappointed but there was absolutely no problem with him, and I love him."
Next up for Norrie is Argentinean lucky loser Federico Gomez.
Jack Draper completed a very good day for Britain by beating Mattia Bellucci.
The 23-year-old British number one recovered from a slow start to win 3-6 6-1 6-4 6-2 under the roof on Court Suzanne-Lenglen.
Draper joins the rest of his compatriots - Emma Raducanu, Katie Boulter, Sonay Kartal, Jacob Fearnley and Norrie - in the second round. It's the first time the nation has had six first-round winners at Roland Garros since 1973.
Novak Djokovic braved strong winds and light rain but found little resistance from American Mackenzie McDonald, cruising into the second round to start his bid for a record 25th Grand Slam crown.
The sixth-seed Serbian, fresh from his title win in Geneva last week - the 100th of his career - pummelled McDonald into submission with a dominant 6-3 6-3 6-3 win on the same court he claimed singles gold at the Paris Olympics last year.
Djokovic, who looks to have found his form after splitting with coach Andy Murray a few weeks ago, broke the American at 2-2 and, after a 10-minute interruption due to wind and rain, raced into a 5-2 lead.
He was unfazed by another interruption to close the roof over the Philippe Chatrier court, wrapping up the first set on his serve.
Another break at the start of the second set put the 38-year-old firmly in the driving seat, leaving the 98th-ranked American with a mountain to climb.
Djokovic was equally dominant in the third with another early break, sealing the win on his first match point when McDonald sank a backhand return into the net.
Djokovic is now a record-extending 21-0 in first rounds at the French Open and has not lost a single set in an opener in Paris since 2010.
