Gareth Bale has been ruled out of Real Madrid's Champions League tie against Atletico Madrid with a calf injury.

Bale started Sunday's Clasico but came off with the injury. Tests have now shown a Grade 2 problem.

Bale has had 17 different injuries during his four seasons in Spain.

"[Bale] is the first one unhappy with what happened, but he told me he was at 100 percent, that the two training sessions before the game were perfect, with no problems at all," Zinedine Zidane said. "I trust everything my players tell me.

"Then this has happened. We cannot avoid it. The player wants to play. When you have a very long injury, when you return it is difficult. Maybe at the start you are good, but when you train every day you pick up another problem.

"It is not a big injury. We hope we have him back soon, before the end [of the season]."