Jannik Sinner case dividing tennis with lack of transparency at its core

World No 1's complex case asks familiar questions of doping authorities and just why it was kept secret for so long Jannik Sinner took his first steps on the clay courts of the Madrid Open on Saturday 20 April. By that time, although the rankings did not yet reflect it, Sinner was undeniably the best player in the world. He had won his first grand slam title at the Australian Open in January before embarking on a spectacular, consistent run. His pre'tournament interviews in the subsequent days w...