Chelsea's new Dutch signing, Marco van Ginkel, will miss the rest of the season and next year's World Cup after sustaining a serious knee injury, according to various reports in the British media on Thursday.

The midfielder, in only his second start for Jose Mourinho's side since his switch from Vitesse Arnhem, tore his anterior cruciate ligament in Tuesday's League Cup win over Swindon.

The damage was confirmed by an MRI scan, reports said.

Van Ginkel went down injured following an early challenge by Swindon's Alex Pritchard. Despite trying to play on, van Ginkel then went off in the 10th minute at League One Swindon's County Ground.

"We've got an injury to Marco which, it's a little bit too early to be certain but it doesn't look good," said Chelsea assistant first-team coach Steve Holland after the game.

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