Loss to teenager Jakub Mensik in Miami final shows difficulty of maintaining such high standards at the age of 37During a quiet period in the relentless calendar three years ago, the 16-year-old Jakub Mensik received an unexpected proposal. The Czech, who had just reached the boys’ singles final a t the Australian Open, was invited by Novak Djokovic, his idol, to train together at the Serb’s academy in Belgrade. The pair quickly established a rapport, with Djokovic offering advice and counsel. For Mensik, this was a pivotal moment.On Sunday, at the Miami Open, the pair stood across the net from each other again, this time as rivals, and he closed out a 7-6 (4), 7-6 (4) victory to win his first ATP title in one of the top tournaments. Continue reading... ...read more read less