Born in Domont, Val-d'Oise, Buval joined Bolton Wanderers at the age of 16 from AS Nancy, but he never broke through to the first team as a senior, being limited to reserve football[2][3] and also suffering from recurring knee problems.

In July 2007, Buval agreed to a two-year contract with Danish Superliga club Randers FC, joining after a trial period as a replacement for Djiby Fall who had left at the end of the previous season.

On 13 January of the following year, he moved to fellow Superleague side Panionios FC, scoring only three goals combined during the season and suffering relegation with the former.

Leiria (two goals, 2–1 home success),[8] and finished the season as team top scorer but they were eventually relegated just one year after promoting.

Paços de Ferreira, S.C. Olhanense and Flamurtari Vlorë, agreeing to a two-and-a-half-year contract with the latter on 28 January 2015 for a reported €11,000 per month.