Barcelona 1-0 Athletic Bilbao: Teenager Marc Guiu scores only goal on senior debut
Marc Guiu scores the only goal 33 seconds into his senior debut to give Barcelona a 1-0 home win over Athletic Bilbao.
Akyereko TheWriter 
Marc Guiu scores the only goal 33 seconds into his senior debut to give Barcelona a 1-0 home win over Athletic Bilbao.
