Despite the majority of leagues in Europe already passing into the second half of their campaigns, there are a handful of survivors who are yet to be defeated. We take a look at the five teams who are still unbeaten in their respective national competitions...
Barcelona (Spain)
The Catalan club top La Liga with 58 points, winning 18 matches and only drawing four, and are nine points ahead of second-placed Atletico Madrid.
Porto (Portugal)
After playing 20 games in the Primeira Liga, Porto have 52 points (W16, D4) but are only two points ahead of Benfica and Sporting Lisbon in second and third respectively - although their rivals have played one match more.
Viktoria Plzen (Czech Republic)
The Czech leaders have secured 46 points from 16 league games (W15 D1) and are comfortably top with a 14-point lead over SK Slavia Prague.
Dinamo Zagreb (Croatia)
Dinamo lead the Croatian HNL with 50 points (W15 D5) and have a 12-point cushion over second-placed Hajduk Split.
Lincoln Red Imps (Gibraltar)
It may be a tiny island off the south of Spain but Gibraltar have a competitive league - except for leaders Lincoln Red Imps who are undefeated in ten games (W10) and boast an 11-point lead over second-placed College Europa, who do have a game in hand.