Vaughan, 29, batting in the practice nets on the Nursery ground behind the main playing area, stretched for a wide ball but slipped and fell.

After being stretchered off, he was taken to the nearby St John's and St Elizabeth Hospital in St John's Wood, north-west London, where he underwent a scan.

England and Wales Cricket Board (ECB) chief medical officer Dr Peter Gregory said afterwards: "The scan showed no significant damage to the knee ligaments.

"However, Michael has a previous history of cartilage problems with the right knee and may have aggravated an old injury.

"At this stage, he is in serious doubt for Thursday and will continue to receive treatment from the England medical team over the next 48 hours."

Vaughan, explaining how he sustained the injury, said: "I went to play a sweep shot against one of the net bowlers and ended up on the floor as you do sometimes when you play that type of shot.

"As I went to stand up my body twisted and I just felt my knee lock.