Bayer 04 Leverkusen midfielder Vladlen Yurchenko has suffered a setback to his development at the club after sustaining a fractured fibula.
The Ukraine youth international has yet to command a regular starting berth with Leverkusen since arriving from Shakhtar Donetsk in 2014.
The untimely nature of the injury will be a blow to the gifted 22-year-old playmaker, who showed glimpses of his potential in the 2015/16 season with two goals and a solitary assist in brief cameos from the bench.
After being called up to the senior national team, Yurchenko took a blow to the calf and after further tests from the club's medical department, his knock was diagnosed as a "hairline fracture to the left fibula".
A statement from the club read: "Yurchenko will probably be sidelined for four to six weeks."
After playing only 11 times for Roger Schmidt's side last season, the youngster will be hoping to earn himself more regular game-time amongst a star-studded squad at the BayArena.