Gareth Bale is a doubt for Real Madrid's La Liga game at Rayo Vallecano on Wednesday, boss Carlo Ancelotti has said.

Bale has scored five times in his last four games for club and country, including the opener in Madrid's 9-1 weekend hammering of Granada, overcoming a dip in form that had seen the €100 million signing go nine matches without a goal.

But the Wales international may miss the short trip across the Spanish capital to in-form Rayo, Ancelotti revealed at his pregame news conference.

"We have a small problem with Bale," Ancelotti said. "He has a bang to his left foot. We must weigh it up tomorrow, then pick the team."

Should Bale miss out, it would mean Ancelotti could put off deciding which of his high-profile attacking stars to leave out of his XI, with €80 million summer signing James Rodriguez fit again and fans' favourite Isco available after being suspended for the Granada game.