Liverpool defender Joel Matip will undergo a surgery after suffering a fractured collarbone during Champions League group stage match against Napoli.Matip landed awkwardly after one of the aerial duels in the stoppage time. Cameroon international will reportedly be out for 6 weeks.This means Jurgen Klopp could enter transfer market to find a center back, as Joe Gomez is also injured and he can’t always use Virgil Van Dijk and Dejan Lovren.Liverpool beat Napoli due to Mo Salah’s first half goal to secure their place in round of 16.