England batsman Joe Denly will undergo a scan after injuring his left knee while playing football ahead of a practice session at The Oval.
England play Australia on Friday in the first of seven one day internationals.
The 23-year-old Kent opener had to be carried off after a tackle from Owais Shah in the warm-up kick around on Thursday morning.
The clash left Denly injured on the ground for 15 minutes before he was helped off by England physio Kirk Russell and head of security Reg Dickason.
The tendency to play football before matches has been criticized in the past.
Matt Prior sustained a back spasm while playing football during England's warm up for the fourth Ashes Test at Headingley last month.
