Chelsea midfielder Marco van Ginkel is facing a lengthy spell on the sidelines after appearing to rupture his cruciate ligament, according to Dutch newspaper De Telegraaf.
The Dutchman had to be substituted during Chelsea's 2-0 win against League One side Swindon Town - after he seemed to have twisted his knee after landing awkwardly on the County Ground turf.
Van Ginkel tried to play on after receiving treatment from Chelsea's medical team but was forced off after just 10 minutes.
The 20-year-old reportedly had an MRI scan earlier today and the prognosis has shown the former Vitesse Arnhem midfielder will be out for nine months - which would rule him out of the rest of the season and next summer's World Cup in Brazil.
Van Ginkel is expected to undergo surgery later this week.