Super Eagles striker Henry Onyekuru's decision to join Olympiakos could be the best move of his career, and could reignite his Nigeria chances.
Arsenal held on to reach the quarterfinals of the Europa League, 3-2 on aggregate, after a 1-0 second-leg loss to Olympiakos.
Arsenal needed a pair of late goals to secure victory over a resilient Olympiakos side in their Europa League round of 16, first-leg tie.
Olympiakos were eliminated from the Champions League when they slumped to a 2-1 defeat at Olympique de Marseille in Group C on Tuesday.
Manchester City qualified for the round of 16 of the Champions League with a victory at Olympiakos on Wednesday.
Manchester City continued their perfect start to the Champions League campaign as they toiled to a 3-0 home win against Olympiakos.
Fabio Vieira scored an early goal for FC Porto as they beat Olympiakos 2-0 in their Champions League Group C clash.
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A stoppage time goal by late substitute Ahmed Hassan gave Olympiakos a 1-0 win over 1993 European Cup winners Marseille in Group C.
Liverpool have made their first signing of the transfer window by bringing in Greece defender Kostas Tsimikas from Olympiakos on a long-term deal.
A ninth minute penalty from Raul Jimenez gave Wolves a 1-0 win over Olympiakos which took them through 2-1 on aggregate in the tie.
The Europa League draw made on Friday means Manchester United face a potential final with Inter Milan.
Arsenal's match against Man City on Wednesday has been postponed after some players made "close contact" with Olympiakos owner Evangelos Marinakis.
Youssef El Arabi's last-gasp goal in added extra time helped Olympiakos pull off a major upset and oust Arsenal from the Europa League.
Alexandre Lacazette scored a crucial away goal to give Arsenal a 1-0 win over Olympiakos in Europa League round-of-32 action on Thursday.
Real Sociedad have wished their former player, Darko Kovacevic, "a swift recovery" following reports that he was shot at outside his home in Athens.
Tottenham rallied from two goals down to beat Olympiakos 4-2 in Jose Mourinho's first home match to book passed to the Champions League last 16.
Bayern Munich clinched their place in the Champions League round of 16 by beating Olympiakos 2-0 at home on Wednesday.
Bayern Munich needed two goals from their top scorer Robert Lewandowski to sneak past hosts Olympiakos 3-2 on Tuesday.
Olympiakos' Ruben Semedo was called up by Portugal while he awaits trial in Spain over charges of attempted murder, kidnapping and robbery.
Olympiakos were charged after their fans unfurled a banner that UEFA deemed to be racist in their 3-1 loss at Red Star Belgrade.
Former European Cup winners Red Star Belgrade fought back to earn a 3-1 home win against 10-man Olympiakos Piraeus in a pulsating Champions League G
Olympiakos battled back from two-goals down to earn a 2-2 draw with Tottenham in their Champions League Group B opener in Athens on Wednesday night.