Sinner accepted a three-month ban in February following an agreement with the World Anti-Doping Agency, which challenged an independent tribunal's decision to clear him of wrongdoing after two positive tests for the anabolic agent clostebol.
Carlos Alcaraz said Sunday that the pressure to reclaim the world number one ranking from the suspended Jannik Sinner has had a negative impact on his form this season.
Sinner received a three-month ban agreed with the World Anti-Doping Agency (WADA) in February after "admitting "partial responsibility" for team mistakes.
Jannik Sinner accepted on Saturday a three-month ban from tennis after the world number one admitted team mistakes led to him twice testing positive for traces of banned substance clostebol last year.
"He has lost only four or five matches in the past year, so it's crazy. I know people say who's better out of us. They say Jannik is better or some say me. It's all discussion."
Double Australian Open champion Jannik Sinner set his sights on mastering clay and grass courts to make himself a complete player after the Italian claimed his third hardcourt Grand Slam title on Sunday.
The 23-year-old came through a tense battle between the world's top two players 6-3, 7-6 (7/4), 6-3 on Rod Laver Arena, raising his arms in the air and looking to the sky in celebration.
The victory earned the Italian world number one his third Grand Slam crown.
Sinner's coach Darren Cahill said it was no surprise for him to see his young charge back in the final, but they were wary of the threat posed by Zverev's overarching desire to finally win a Slam.
Since Stan Wawrinka won his only title in Melbourne in 2014, Novak Djokovic has picked up six trophies, Roger Federer has won two and Rafael Nadal has won one.
Jannik Sinner ended defending champion Novak Djokovic's bid for a record 25th Grand Slam title on Friday, snapping the Serb's astonishing 33-match winning run at Melbourne Park to reach his first major final.
Former US Open champion Medvedev will hope to get third time lucky when he meets Italian youngster Jannik Sinner on Sunday
The Italian ended the Serb's record 33-match winning run at Melbourne Park.
Sinner is yet to drop a set in his three matches so far.
Italian Jannik Sinner's climb towards the top of men's tennis could hardly be described as sluggish unless of course a direct comparison is made with Spanish phenomenon Carlos Alcaraz.
Italy's Davis Cup hero Jannik Sinner said it was a "special feeling" to end his team's 47-year drought in the competition on Sunday in Malaga.
Novak Djokovic said he accepts responsibility for Serbia's Davis Cup semi-final defeat by Italy on Saturday after failing to convert three match points against Jannik Sinner.
A "proud" Jannik Sinner beat world number one Novak Djokovic twice in one day to send Italy into the Davis Cup final with a 2-1 win over Serbia on Saturday in Malaga.
Novak Djokovic barely got out of second gear as he swept past a subdued Jannik Sinner at Wimbledon, easing into a record 35th Grand Slam final with a whirlwind 6-3, 6-4, 7-6(4) victory on Friday.
