The starlet has reportedly caught the attention of the Spanish giants and appears excited at the link, saying he is keen to play at the highest level possible in his career
The 16-year-old is considered to be one of the most promising emerging talents in European football and has been nicknamed 'the new Drogba'. A report in June suggested that Madrid are keeping tabs on the African, and the forward appears keen to move to Santiago Bernabeu.
"Hearing that Jose Mourinho is interested in you is like going to Disneyland when you're a six-year-old. It is like living in a land of dreams," Coulibaly was quoted as saying by Sky Sport Italia.
"I want to play at the highest level possible. However, I am currently a Siena player."
Coulibaly impressed during the under-17 World Cup in Mexico, where he netted nine goals in four games for the Ivory Coast.
He has not signed a professional contract with Siena as of yet, but the newly promoted Serie A side are keen to tie him down with the promise of first-team football.