Grigor Dimitrov may have come up agonizingly short of making his first Grand Slam final, but he’s looking at the bright side. At 25, he’s reached the second major semifinal of his career, and he took Rafael Nadal to five sets – in nearly five hours – before finally losing 6-3, 5-7, 7-6 , 6-7 , 6-4 at the Australian Open.