(Reuters) -Atletico Madrid defender Robin Le Normand suffered a high-grade injury to the back of his left knee during their 3-1 Champions League win over Union Saint-Gilloise, the LaLiga club said on Wednesday.
The Spain international was substituted midway through the first half of Tuesday's home game against the Belgian club after colliding with a Saint-Gilloise player and grimacing in pain.
Medical tests confirmed the injury was caused by a hyperextension of the joint.
"Further assessment carried out on Wednesday confirmed a high-grade injury to the posterior capsule and the semimembranosus muscle, but the ligaments and meniscus were not affected," Atletico said in a statement.
Spanish media reported that the 28-year-old could be out for at least a month, which would rule him out of Spain's World Cup qualifier away to Georgia on November 15 and Atletico's Champions League home game against Inter Milan on November 26.
(Reporting by Shifa Jahan in Bengaluru; Editing by Kate Mayberry)
