DeLaet leads and Rose hits ace as golf returns (Reuters)

View photosMore2016 Rio Olympics - Golf - Preliminary - Men's Individual Stroke Play - Olympic Golf Course - Rio de Janeiro, Brazil - 11/08/2016. - Graham DeLaet (CAN) of Canada hits his tee shot on the first hole during the first round of the men's Olympic golf compeititon . REUTERS/Andrew BoyersRIO DE JANEIRO (Reuters) - Canada's Graham DeLaet fired a five-under-par 66 to grab the early clubhouse lead but Justin Rose drew the cheers for a hole in one on golf's return to the Olympics after a 112-year absence.

Taking advantage of ideal morning scoring conditions, DeLaet opened defense of the gold medal won by Canada's George Lyon at the 1904 Summer Games, mixing six birdies with a bogey to…