Ronaldo's penalty in the 44th minute wiped out Veretout's spot-kick, just two minutes before the Frenchman restored the lead for the Giallorossi.
"I think it's a great variety shot, the dropshot. I think it's important tactically to have it and to use it at the right time so that you can keep your opponent always guessing what the next shot is," said the top seed, who is seeking his 18th Grand Slam title at Paris.
Valencia were held 1-1 at home to recently promoted Huesca in a game the visiting side probably deserved to win, but had to settle for Dimitrio Siovas' header cancelling out Daniel Wass' fortunate opener for the home side.
Betis' horrible night was completed eight minutes from time when Alissa Mandi was sent off for two yellow cards to leave his side to play out the final minutes with 10 men.
Messi was the center of attention at the start of the game after his attempt to leave the club over the summer and Friday's criticism of the decision to sell Luis Suarez to Atletico Madrid, but Fati was the hero of the game, scoring in the 15th and 19th minute and then winning a penalty to allow Messi to add a third in a thrilling first half performance.
In case of infections within club ranks, clubs must ensure at least a 13-man squad to compete in games.
Vital performers such as Robert Lewandowski and Thomas Mueller demanded new faces after admitting to be exhausted after an energy sapping 2019/2020 season.
Monday's first game saw Fulham outclassed at home by Aston Villa. The side that won promotion to the top-flight two seasons ago, outplayed the team that did the same last season with goals from Jack Grealish after four minutes, Conor Hourihane 11 minutes later and Tyrone Mings three minutes after the break.
Real Sociedad ruined Elche's return to the top flight as they won 3-0 in Elche's Martin Valero stadium, with all the goals coming in the second half.
PARIS, Sept. 29 (Xinhua) -- World Number 1 Novak Djokovic dominated his first round match at the French Open on Tuesday, sweeping aside Sweden's Mikael Ymer 6-0, 6-2, 6-3 in just 98 minutes.
Having played his part in "Ping Pong Diplomacy" between China and the United States, Yao took up the role of Chinese team leader between 1985 and 1995, followed by his position as the ITTF Technical Committee Chair from 1995 to 2009.