The 25-year-old has already spent a significant amount of time on the sidelines this season through injury and he suffered his latest setback shortly after coming on as a substitute.

Spurs boss Martin Jol confirmed the news on the club's official website, www.tottenhamhotspur.com: "Anthony came on at Chelsea and after a couple of seconds took a knock to his knee.

"We'll do a CT scan but it looks like he'll be out for around six weeks.

"Fortunately, we have a squad of versatile players who can cover our defensive positions."