Liverpool manager Jurgen Klopp will allow Luis Diaz to decide whether he is able to play this weekend following his father's kidnapping in Colombia.
Klopp confirmed Diaz, 26, returned to training on Wednesday as the Reds prepare to face Luton on Sunday.
Luis Manuel Diaz and his wife were seized at gunpoint on Saturday. Diaz's mother was found in Barrancas but his father remains missing.
"We will wait to see how he is and go from there," Klopp said.
"We will not force the situation - it's out of our hands," he added.
"If he feels right, he will train with us.