Jannik Sinner makes return to action with comfortable win over Tomas Machac in Doha

[p]The world number two eased past the 31st-ranked Czech [a href="https://www.flashscore.ca/game/tennis/machac-t-S44E7UYr/sinner-j-6HdC3z4H/?mid=jZ1FaKN6"]6-1, 6-4[/a] to set up a second-round meeting with [a href="https://www.flashscore.ca/player/popyrin-alexei/fJjLpuNq/"]Alexei Popyrin[/a] in Doha, where [a href="https://www.flashscore.ca/player/alcaraz-garfia-carlos/UkhgIFEq/"]Carlos Alcaraz[/a] is the top seed this week.[/p][p]It was a convincing return to action for [a href="https://www.flashscore.ca/player/sinner-jannik/6HdC3z4H/"]Sinner[/a] after his semi-final loss to [a href="https://www.flashscore.ca/player/djokovic-novak/AZg49Et9/"]Novak Djokovic[/a] at Melbourne Park last month. The Italian lost just six points across his nine service games.[/p][embed guid="a0a89c4b-96a7-46b7-bf58-719f47ae9f19" url="https://www.youtube.com/watch?v=RPf3df7Dwjk" social-type="youtube" /][p]Sinner raced through the first set in under half an hour but [a href="https://www.flashscore.ca/player/machac-tomas/S44E7UYr/"]Machac[/a] improved in the second.[/p][p]A break in the fifth game still proved enough for the four-time Grand Slam champion, although he needed five match points to close it out.[/p]