The Austrian won a major, the 2020 US Open. He also reached the final of three other Slams, won 17 ATP singles titles; achieved a career-high ATP Ranking of No. 3; and was ensconced in the Top 10 for the better part of six years.
Rublev awaits either Emil Ruusuvuori or Australian qualfiier Max Purcell in the second round.
The Italian Berrettini survived a scare in the second-set tie-break, trailing 1/5 after losing the first set. However, the second seed found his full range just in time, reeling off six consecutive points to clinch the set, before he raced away in the third set to advance after two hours and 16 minutes.
With the victory, Murray improves to 8-1 in first-round matches on the year. He next faces 14th seed Denis Shapovalov, who squeezed past lucky loser Ugo Humbert of France, 7-6(1), 6-3.
The third seed Thiem beat unseeded Kyrgios 4-6, 4-6, 6-4, 6-4, 6-4 to progress to the fourth round of the year's first Major
From second set, Rafael Nadal couldn't think about anything to restrict Daniil Medvedev and squandered another chance to win the ATP Finals.
Dominic Thiem is now 2-0 in round-robin play in Group London 2020 and has improved his chances of reaching the semi-finals for the second successive year.
Rafael Nadal defeated 19-year-old Sinner 7-6(4), 6-4, 6-1 in a match that lasted two hours and 49 minutes on Court Philippe-Chatrier.
Rafael Nadal produced another ruthless and dominant display as he dropped four games to complete a 6-1, 6-1, 6-2 win over American qualifier Sebastian Korda.
Second seed Rafael Nadal will now face Italy's Stefano Travaglia, who survived a five-set thriller against Japan's Nishikori Kei.
