Olmo's double leaves Espanyol in dust as Barca extend La Liga lead - Olmo nets two, 'wants more' in return to Barca XI - Olmo registration for Barca's Rayo clash confirmed - Source: Olmo out due to Barca registration issue - Source: Olmo out due to Barca registration issue - Olmo out of Barca opener amid registration issue - Source: Barca reach agreement for Olmo transfer - Source: Barca chief in Leipzig over Olmo transfer - Sources: Barca eye Olmo amid Williams struggle - Olmo: Spain can handle pro-England final crowd