[ad_1] Thiago Agustin Tirante stunned Novak Djokovic 2-6, 6-4, 6-4 in the Cincinnati Open’s second round, earning the biggest win of his career. The Argentine stayed composed despite Djokovic’s resistance and physical struggles. Tirante, ranked 50th, will next face Martin Landaluce, after improving his record against top-10 opponents to four wins and one loss. [ad_2]…