Who does Liverpool need to sign in the January Transfer Window? 

#3 Thorgan Hazard

Manchester City FC v VfL Borussia Moenchengladbach - UEFA Champions League

The former Chelsea player is often overshadowed by the phenom-like ability of his older brother Eden. But Thorgan is a quality player in his own right. He has made the Borussia Moenchengladbach team his own and is their key player.

Part of the Belgium national team at the 2018 World Cup, Thorgan is a dangerous attacking winger who can definitely add to the depth of this Liverpool team.

Capable with set pieces and penalties, Thorgan can benefit from continuing his footballing education in England. Chelsea has recently waived a clause in his contract to match any offer which may indicate that a move is on the horizon.

The player is also strongly linked to Borussia Dortmund where he would reunite with his former coach Lucien Favre as a replacement for the outgoing Christian Pulisic. But with Pulisic only joining Chelsea in the summer that particular move might have to wait for the next window.