Newcastle's Jack Colback out up to 6 weeks with knee injury

Newcastle midfielder Jack Colback has been ruled out for up to six weeks with a knee injury.

The former Sunderland player sustained the injury following a challenge by Lee Cattermole in the early stages of the second half of Sunday's 3-0 Premier League loss to their fierce rivals.

The Tyneside club tweeted: "Newcastle United midfielder Jack Colback will be sidelined for up to six weeks with a knee injury, following further scans and assessment on Thursday. The injury is not as bad as first feared."

The 26-year-old has started nine of the Magpies' 10 top-flight games this season.