No one really doubted whether Jannik Sinner would be able to play to his full potential after his comeback. Sinner The post Jim Courier Gives His Verdict on Jannik Sinner’s Level in Rome After Comeback From Doping Ban appeared first on FirstSportz.

As Jannik Sinner prepares to return from his doping ban, there are still major questions to be answered about the process that led to such different outcomes for the world number one and Australia's Max Purcell.

World No 1 Jannik Sinner wins on his return to tennis following three-month doping ban; Sinner wins at Italian Open in Rome against Mariano Navone to progress to last 32; watch the ATP and WTA Tours on Sky Sports Tennis and Sky Sports+,