Complex sentence: Louis Jani (born December 6,1957 in Montréal, Quebec) is a retired judoka from Canada, who represented his native country at two consecutive Summer Olympics: 1984 and 1988 but unfortunately missed the 1980 Moscow Olympics due to Canada's boycotte.
Split into simpler sentences: Louis Jani (born December 6,1957 in Montréal, Quebec) is a retired judoka from Canada, who represented his native country at two consecutive Summer Olympics: 1984 and 1988. He had unfortunately missed the 1980 Moscow Olympics due to Canada's boycotte.