The England goalkeeper pulled up in the pre-match warm up at Stoke yesterday and it now looks like Pompey will be without their number one stopper for three weeks.
That would rule James out of the Premier League fixtures at home to Manchester United and Burnley as well as the trip to Sunderland. David will also miss out on the Carling Cup quarter final tie with Aston Villa.
As a result of James' injury, Asmir Begovic has been recalled from his loan spell at Ipswich Town and could well be pushed into the first team ahead of Jamie Ashdown and Antti Niemi.
Begovic's arrival at Portman Road had co-incided with an upturn of form for Roy Keane's side and he was supposedly a popular figure with the Tractor Boys.
However, this is now a massive opportunity for the Bosnian to show that he is ready to step up to the Premier League. He has shown a lot of promise for a while now and at 22-years-old he could make a name for himself.
Of course, things could go wrong for him but I think we have an able deputy in Begovic and Jamo could find it difficult to get back into the side when he returns from his injury.