Swimming-More tears for Bert as son Chad carries South African flag

TOKYO, July 23 (Reuters) - Bert le Clos has been crying over his son again. The Olympic Games' most famous dad, whose tears of joy at London 2012 when his son won an upset swimming gold turned him into a celebrity, was full of emotion again this week when Chad le Clos was named as one of the flagbearers for South Africa at Friday's Olympic Games opening ceremony.