The on-loan Arsenal star joined the Gunners back in August 2011 - but is yet to make an appearance for Arsene Wenger's side.
Campbell, who can play in midfield or as a striker, has been shipped out to Lorient, Real Betis and Olympiakos since joining Arsenal for an undisclosed fee.
The 21-year-old has scored five goals in 14 games in the Greek Super League so far this season - with Campbell often playing off the right wing.
Campbell could further adhere himself to the Arsenal faithful if he can help Olympiakos knock Manchester United out.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: https://www.givemesport.com/writeforgms