On July 1, 2014, Jeanneret was diagnosed with stage 3 throat cancer, which required Jeanneret to miss part of the 2014-15 NHL season. Although he initially sought treatment in his native Canada due to Canada's universal single-payer health care system, he later sought American treatment (coincidentally, from the same doctor that also treated Buffalo Bills quarterback Jim Kelly) due to his stronger personal attachment with the United States after four decades of work in the country. On November 7, 2014 Jeanneret announced that following a CAT scan he was clear of cancer. He returned to broadcasting Sabres games eight days later on Saturday, November 15, calling the first period of the game against the Maple Leafs.