Nigeria, Oct. 22 -- It was a wild night of football in the UEFA Champions League, as 43 goals were scored across Europe on Day 1 of Matchday 3.

Barcelona, Paris Saint-Germain, and Arsenal were among the biggest winners, turning their matches into goal fests.

At the Olympic Stadium in Barcelona, the Spanish giants crushed Olympiakos 6-1 in front of a noisy home crowd.

Fermin Lopez scored a brilliant hat trick - the first of his career - while Marcus Rashford, on loan from Manchester United, added two more goals.

Lamine Yamal also scored from the penalty spot as Barcelona took full control after Olympiakos went down to 10 men in the second half.

The visitors had briefly pulled one back through a penalty by Ayoub El Kaabi, but their hop...