BUFFALO — As the months passed and he remained sidelined by a blood clot, Sabres center Jiri Kulich said he kept asking himself if he would be able to play hockey again. “It was kind of a roller coaster,” he said Tuesday during his end-of-season media availability in KeyBank Center. Then two months ago, Kulich, 22, said he underwent a procedure at the Mayo Clinic in Rochester, Minnesota, to ...