Although he started the season with a victory over Athletic BilbaoReal Madrid have cause for concern after another serious injury, the third this week.

Eder Militao is out for at least six months, as are Thibaut Courtois and Arda Guler

In the 50th minute of Bilbao’s away game, defender Eder Militao was injured after contact with Oihan Sunset and was replaced by Antonio Rüdiger.

After an examination on Sunday, it was revealed that the Brazilian has ruptured the cruciate ligament in his left leg and will undergo surgery, which will keep him out for at least six months.

Just three days ago, Madrid lost goalkeeper Thibaut Courtois for an extended period after he suffered a serious injury in one of the team’s training sessions.

In addition, youngster Arda Guler, a €20m transfer from Fenerbahce this summer, is also set to undergo surgery on a meniscus injury sustained at the end of last month.