Luis Diaz played 114 minutes in Man United v Liverpool. After the match Jurgen Klopp said the striker had a kidney problem.
Diario AS reports that the Colombian national team has been notified that Lucho injury could be serious.
According to local sources Noticias Caracol has not yet confirmed that the 26-year-old will withdraw from the Colombian national team. It is understood Diaz is awaiting test results to determine the extent of the injury.
The Colombian has made 39 appearances for Liverpool in all competitions this season scoring 11 goals and providing five assists