Allan is currently undergoing the third loan spell of his short Liverpool career.
The Brazilian teenager made a big mistake on his Hertha Berlin debut.
The phrase 'sleeping giant' is one that has crept more & more into footballing parlance over the years, we take a look at some current outstanding examples.
John Terry looks set to leave Chelsea this summer, a decision the club would regret according to one of their former heroes.
The striker has left Hertha Berlin for a new challenge - but remains in Germany.
Sheffield Wednesday have reportedly joined Blackburn Rovers, Nottingham Forest and Hull City in the race for Hertha Berlin striker Sandro Wagner.
The former German under-21 star has struggled in the German capital recently.
Salomon Kalou has scored six goals for Hertha Berlin this season as the former Premier League target struggles to find form.
Salomon Kalou considers his spell at Chelsea to have been a success and believes he is a better player for his Premier League experience.
German international Lukas Podolski will not be joining former youth team coach Jos Luhukay in Berlin.