According to Nieuwsblad, Chelsea had scouts in Belgium on Saturday to watch Gent forward Gift Orban, who has 19 goals in 19 games this season.
The 20 year old forward is represented by the same agent as Chelsea forward David Datro Fofana.
The Nigerian forward is also attracting interest from Manchester United, Tottenham Hotspur, Inter Milan, Sevilla and Borussia Dortmund.
Orban has four years left on his contract with Gent, whom he joined from Norwegian outfit Stabæk.