Zinedine Zidane is likely to pick between the playmaking pair against Juventus, but their team-mates are reluctant to speculate on who gets the nod
Luka Modric says Real Madrid's players have not been told whether Gareth Bale or Isco will be picked to start the Champions League final.
Bale has declared himself fit after recovering from a calf injury, but Isco has excelled while deputising for the Wales international as Madrid claimed their first La Liga title in five years.
Zinedine Zidane insisted the duo can play together ahead of the Cardiff showpiece against Juventus, but Croatia international Modric said the team is yet to be decided.