Marton Fulop, formerly of Sunderland and Ipswich Town, is one player who has been at both clubs.
They have recently come to the fore however as one of Greece's best teams and Tottenham will not be taking them lightly in tonight's fixture at White Hart Lane.
But did you know, there is a player who has played for both teams?
Hungarian goalkeeper Marton Fulop.
Fulop has a patchy reputation among Tottenham fans.
He was at the club between 2004 and 2007 - when he made a permanent move to Sunderland.
He spent time on loan on Wearside as well as enjoying spells at Chesterfield and Coventry City. He won his first Hungary cap while a Tottenham player - but he never made a competitive appearance for Tottenham during his three year stint in North London.
In fact, most Tottenham fans will remember him for costing them a place in the Champions League back in 2012. He made blunders for all three of the Arsenal goals in a 3-2 defeat against The Gunners whilst a West Brom player on the final day of the 2011-12 season.
Arsenal's victory ensured they qualified for the Champions League instead of Tottenham. It was a result that left him gutted, admitting as much after the game as he was a boyhood Tottenham fan.
That game was Fulop's one and only for West Brom and he was released just days later.
Two months later and Fulop made the move to Greece, joining Asteras on a two-year deal.
He had an incredible first season at the club, leading them to a third-placed league finish, the best in the club's history, as well as earning back a place among the Hungarian national team.
Unfortunately for Fulop he was forced to leave the Greek side to undergo surgery and treatment for a tumour in his arm. After his recovery he stated he would be taking a break from the game while he continued his recovery from the ailment.
Currently he remains a free agent and we hope his recovery continues to go well - as he will be perhaps the most interested spectator for tonight's fixture.