Top-ranked Jannik Sinner rallied to beat Roman Safiullin 3-6, 6-2, 6-3 in the second round of the China Open on Saturday and learned afterward that his steroid case is far from over. While Sinner was on court in Beijing, the World Anti-Doping Agency announced it was seeking a ban of one to two years for the U.S. Open champion who tested positive twice for an anabolic steroid in March but was not suspended in a decision by an independent tribunal announced by the International Tennis Integrity Agency on Aug. 20 because the ITIA determined he was not to blame. Sinner’s fate will now be determined by the Switzerland-based Court of Arbitration for Sport after WADA said it filed an appeal on Thursday.