Alexander Zverev laid down a marker with a first-round demolition of Ricardas Berankis at the French Open on Sunday and David Goffin fought back from two sets down to beat Robin Haase.
Zverev came agonisingly close to defeating Rafael Nadal for the first time in a classic final in Rome last week and the second seed started his quest to win a maiden major title with a 6-1 6-1 6-2 hammering of an outclassed Berankis.
The 21-year-old German hit 29 winners and broke seven times in a one-sided affair on Suzanne-Lenglen Court, taking just 69 minutes to sail into round two.
Goffin was forced to retire at Roland Garros last year after suffering a heavy fall and looked set to endure further pain before pulling himself off the ropes to beat Haase 4-6 4-6 6-4 6-1 6-0.
Grigor Dimitrov needed just the three sets to see off lucky loser Mohamed Safwat – a late replacement for the injured Viktor Troicki – 6-1 6-4 7-6 (7-1).
There were no shocks on the opening day of the main draw in the men's singles, Kei Nishikori and Lucas Pouille among the other seeds to go through.
ZVEREV IN CRUISE CONTROL
Zverev was able to preserve his energy as he took Berankis apart in quick time to set up a meeting with Jiri Vesely or Dusan Lajovic.
Berankis won just 38 points and did not earn a single break point as he was totally outplayed by the towering German.
Zverev feels he is in good shape as he attempts to live up to the hype in Paris.
"I have won two tournaments, made the finals in Rome; again, losing to Rafa in a close match. I feel good, and today was a good start to the tournament, and I'm happy the way it's going so far." said Zverev.
GOFFIN BACK FROM THE BRINK
Goffin came back from the brink after Haase had him in deep trouble on Court 1.
The eighth seed from Belgium had a first-serve percentage of only 41 in the opening set and was broken five times in a two hour, 52-minute encounter which went the distance.
Goffin said: "I wasn't efficient at all [in the first two sets]. I was not catching the ball early, being sufficiently accurate or precise.
"I couldn't defend. I wasn't creative. He's quite cunning. So when you end up 5-4, deuce, and 30- All, it's not easy. It was important for me to be able to overturn the situation."
Man on a mission.— Roland-Garros (@rolandgarros) May 27, 2018
After falling behind two sets to love, No.8 seed @David__Goffin storms back to defeat Robin Haase in five to reach #RG18 second round.
Sunday Results: https://t.co/wpl4URNH6t pic.twitter.com/hWmCRGTGtG
SAFWAT IN AT THE 11TH HOUR, EXUBERANCE OF YOUTH ACCOUNT FOR KARLOVIC
Safwat only found out he would step in to take on Dimitrov an hour before stepping out on Philippe-Chatrier Court.
A back injury forced Troicki to pull out, so the 182-ranked Safwat became the first Egyptian man for 22 years to compete at a grand slam.
Dimitrov snapped a three-match losing streak, the fourth seed hitting 31 winners and winning 88 per cent of points on his first serve.
The youngest player in the men's singles saw off the oldest, with 19-year-old Corentin Moutet getting the better of Ivo Karlovic – 20 years his senior – 7-6 (9-7), 6-2 7-6 (7-5).
|Leonard focusing on future after Raptors debut|
|MLS Review: Rooney stunner seals DC win, Sounders clinch play-off spot|
|Pochettino ´proud´ of Dier for Ramos tackle|
|Wallabies name three uncapped players for All Blacks clash|
|Lakers coach Walton will monitor LeBron´s minutes, plans to use deep rotation|
|Lloris: United´s Pogba unfairly judged because of transfer fee|
|´Phenomenon´ Mbappe deserves Ballon d´Or, says Buffon|
|Dodgers on cusp of World Series after beating Brewers|
|Mata braced for ´difficult month´ at Man United|
|WATCH: Rooney scores wonderful free-kick for DC United|
|Kaino handed five-week ban for striking Roberts|
|Bears star Khalil Mack ´day-to-day´ with ankle injury|
|Anthony has ´a clearer understanding´ of his role with Rockets|
|Brewers remove Miley after one batter against Dodgers|
|Rams rule out Kupp for 49ers game|
|Giants owner Mara to talk with Beckham Jr|
|Bamberg battle back to claim Champions League win|
|MLB investigated alleged Astros sign stealing, found no wrongdoing|
|Timberwolves star Wiggins to donate $22 for every point this NBA season|
|Red Sox´s Sale won´t start game five of ALCS|
|Tsitsipas and Shapovalov advance at Stockholm Open|
|Witsel to Dortmund is signing of the season - Martinez|
|Pique confident Nadal will play in 2019 Davis Cup|
|Seeds suffer in Moscow and Luxembourg|
|Johnstone grabs hat-trick as England ease past France|
|Pogba and Mourinho disagreement over Instagram video, confirms Pereira|
|Nuggets coach Malone signs contract extension|
|Mayweather accepts Khabib´s challenge: ´We´re fighting´|
|Slovenia sack Kavcic as head coach|
|Morgan and Rashid star as England win rain-reduced ODI in Sri Lanka|
|Romagnoli aims to make Gattuso proud in Milan derby|
|Naldo signs Schalke extension|
|Bills to start quarterback Anderson against Colts with Allen out|
|O´Sullivan makes 147 at ´hellhole´|
|Barcelona know when captain Messi is angry – Abidal|
|Bertens loss hands Pliskova last WTA Finals berth|
|Liverpool star Mane undergoes hand surgery|
|F1 Raceweek: Happy hunting ground for title-chasing Hamilton - US GP in numbers|
|Canelo signs record-breaking DAZN deal|
|England hit by another Vunipola injury absence|
|Gruden: Oakland Raiders ´aren´t tanking´|
|Chiesa focused and happy at Fiorentina|
|We´ll see what´s possible - Henry not limiting Monaco´s ambitions|
|Wembley sale off after Khan offer withdrawn|
|Football needs people like Arsene - Pires keen for Wenger return|
|Abbas five-for torments woeful Australia as Pakistan take control|
|Henry: Wenger and Guardiola inspirations for my coaching career|
|Pires backs Henry and Vieira for Ligue 1 success|
|Bolt rejects Valletta offer|
|Wenger ready for January return to management – but where?|
|NBA 2018-19: The LeBron James effect on teams he has joined|
|Svitolina qualifies for WTA Finals after Pliskova loses|
|Genoa will sell ´superstar´ Piatek, admits president|
|Moutinho targets European qualification with Wolves|
|Embiid: 76ers-Celtics isn´t a rivalry, they always kick our a**|
|Vinicius ´calm´ as he waits for Real Madrid chance|
|Nothing else to say - Ramos posts clip of supposed Sterling stamp|
|Chiellini joins Mind the Gap campaign to help players prepare for retirement|
|Injured Kusal Perera replaced by Kusal Mendis in Sri Lanka squad|
|Big names return for Scotland´s November Tests|
|Essien tells Loftus-Cheek to stay and fight for Chelsea chance|
|Nainggolan relishing challenge of first Milan derby|
|Curry: Slap me if I tire of championship celebrations|
|Sevilla don´t fear Messi or Barca – Kjaer|
|Low: Dropped Muller is still very important for Germany|
|Hayward put ´dark memories´ behind him with Celtics return|
|I hope I´m in Klopp´s good books! - Koeman jokes after resting Wijnaldum|
|Rested Fellaini should be fit for Manchester United, says Martinez|
|France´s mentality must be right - Lloris|
|Bellinger seals dramatic win as Dodgers level up NLCS|