Liverpool winger Luis Diaz has suffered a setback in his comeback from a knee injury.
The 25-year-old Colombian is flying back to the UK from the Reds' training camp in Dubai after complaining of discomfort in the knee he injured in the 3-2 defeat at Arsenal in October.
It had been hoped that former Porto star Diaz could make his return in one of the Reds' upcoming friendlies against Lyon this Sunday or AC Milan next Friday.