Marvin Martin: Lille's record signing has knee surgery
Lille's record signing Marvin Martin will be out of action for four to six weeks after knee surgery.
The France international, 25, joined Lille from Sochaux for 10m euros (£8.46m) last year.
The midfielder came off in their 3-0 Ligue 1 victory over Ajaccio on Saturday after hurting his knee.
"Further examinations showed he had torn his internal meniscus," Lille said on their website. "He successfully underwent surgery on Thursday."