Sakho though has been a revelation for Palace helping Sam Allardyce’s men concede just four goals in his six games to see them move clear of relegation trouble and Big Sam is keen to sign the player up in the summer.Allardyce though knows he has a “big negotiation” on his hands to secure the 27-year-old on a permanent deal and Klopp has confirmed there is nothing in the loan deal that gives Palace first refusal on the player.