Liverpool winger Luis Diaz has trained this week but manager Jurgen Klopp will allow the player to decide whether he wants to be involved at the weekend. The Colombia international’s father is still missing after being kidnapped last week and although there have been suggestions in South America he may soon be set free the 26-year-old has understandably had a difficult few days.soon be set free, the 26-year-old has understandably had a difficult few days.