The Swiss great Roger Federer showed no sign of rust despite a lack of match practice ahead of the 2020 Australian Open. The 38-year-old tennis star started his Grand Slam tour or the year in Melbourn to clinch his 21st Grand Slam title.

In the first round of the Grand Slam event, he defeated Steve Johnson 6-3 6-2 6-2 on Monday at Rod Laver Arena. Playing his first competitive match since losing to Greek ace Stefanos Tsitsipas in the ATP Finals in November 2019, Federer broke his opponent's serve early in each of the three sets and closed out the match when Johnson hit a return long.

2017 Nitto ATP Finals
Roger Federer Reuters

Australian Open

Unlike his main rivals, third seed Federer, who won his last Grand Slam in 2018 at Melbourne Park, opted out of the inaugural ATP Cup in Australia to spend more time with his family before launching his 22nd season on Tour.

In his pre-tournament news conference on Saturday, Federer talked about the importance of getting off to a fast start and he did that against the American, who has not won a set in his three meetings against the Swiss.

"I just haven't played proper matches in many, many weeks, and a lot of guys, probably 95% of the guys, are coming here with matches," Federer told reporters.

"For me really the first three rounds are key to get going, to get used to the pressure, stay calm, when to save breakpoint or 30-all points or whatever it may be, or just to stay calm if you're down a set and a break or whatever it might be.

"This is sort of the unknown that can be a little bit scary at times. But today there was none of that because I broke early each set and was able to get on a roll, play freely after that ... I felt like I had the game under control."

Federer broke the American in his first service game to go up 3-0 and never looked back.

Federer in Melbourn campaign

Despite blustery conditions, Federer served superbly from the start and hit winners at will against Johnson, who is ranked 75th in the world, and he was as ruthless under the closed roof at the Rod Laver Arena after play was interrupted by rain.

He faced just a single breakpoint in the entire match, hitting 10 aces and 30 winners.

"I just think I have to be careful. Round-by-round, point-for-point mentality," added Federer.

A six-time champion at Melbourne Park, Federer will take on the winner of the match between French qualifier Quentin Halys and Filip Krajinovic of Serbia in the second round.

(With inputs from agency)