The 26 year old athlete is suffering from an allergy to the sun, which has been affecting him over the past few days. The Belgian team made an official announcement on Sunday.
Wellens was classed 169th, 2hr41:55 away from the leader, Brit Chris Froome (Sky). He is the first of the 16 Belgians competing to drop out. The Lotto Soudal team has 8 athletes, including Tiesj Benoot, who is currently 22nd. The peloton is made up of 175 cyclists.
Jason Bennett (Source: Belga)