Slovakia's Peter Sagan will compete in the mountain bike event at Rio 2016, rather than the road race event where he is world champion.
The 26-year-old, who will ride the Tour de France for Tinkoff, is a former junior world mountain bike champion.
"Peter will do some special training for four weeks. He will go to Rio to aim for a good position," said Slovak Cycling Association head Peter Privara.
The hilly Rio road-race course is not best suited to Sagan's strengths.