Triple Olympic track gold medallist Kenenisa Bekele will make his marathon debut in Paris in April.
The Ethiopians decision to run in the French capital has effectively ruled him out of a potential head-to-head with British rival Mo Farah at the London Marathon a week later.
Bekele, the 5000m and 10,000m world record-holder, got the better of Farah when the pair raced in the Great North Run half marathon in September.
Farah, the current world and Olympic champion over 5000 and 10,000 has already confirmed he will run in London after completing half the distance last year.