World No, 12 Jannik Sinner was thrilled after recording his 100th ATP match win as he is happy that his hard work is paying off. On Wednesday, Sinner saw off Australian Alex de Minaur 6-4 6-1 in the Madrid second round. It wasn’t a big final or something like that but still it was a match that Sinner will never forget. Sinner, who turned professional in 2018, clinched his first ATP win in 2019 April, when he won his first round match in Budapest. Three years and a month later, Sinner has 100 ATP match …