Lionel Messi scored his 100th goal in European competition as Barcelona moved close to qualifying for the Champions League knockout stages by outclassing Olympiakos 3-1 on Wednesday despite playing the second half with 10 men.
Gerard Pique was sent off two minutes before halftime for two bookings, one for tugging an opponent's shirt and the other for slapping the ball into the net, but Barca were barely threatened by a hapless Olympiakos side who are badly under-performing in their Greek title defence.
The Athens club, who won three league titles and two domestic Cups under current Barca coach Ernesto Valverde, are fifth in the standings in the Greek top flight and have lost all their games in the Champions League.
Barca took the lead in the 18th minute at a rainswept and sparsely attended Nou Camp when visiting defender Dimitrios Nikolaou turned Gerard Deulofeu's cross into his own net.
