Allan Donald, Warwickshire's South African fast bowler, was taken to hospital in an ambulance after colliding with an advertising hoarding while attempting to take a catch during his team's 97-run National League Second Division win over Hampshire.
Donald was positioned at long-on and as he stepped back underneath a skier from Shane Warne, he bounced against the boards which form the boundary line and then collapsed on to the field in obvious pain.
Warne was accredited with one run, but the stricken Donald lay motionless on the ground for several minutes before he was taken away on a stretcher to the dressing-room.
The Warwickshire coach, Bob Woolmer, said: "Allan thinks he has broken a rib but we will not know for certain until he has been properly examined in hospital.
"It is unfortunate that the hoardings form part of the boundary but these sort of things happen in cricket. At this stage we do not know how serious the injury might be."
Donald's injury overshadowed his own formidable part in Warwickshire's National League victory.
Earlier he had taken figures of 3 for 9 in six overs to claim the man of the match award and peg Hampshire back as the prelude to a middle order collapse. Hampshire lost four wickets for six runs in only 20 balls and were later all out for 118 in reply to Warwickshire's 215 for 8 after being put in.
Trevor Penney was the top scorer for Warwickshire with 51 while their opening batsman, Nick Knight, struck five boundaries in his 46.
A crowd of more than 3,000 turned out at Southampton to witness Warne making his home debut for Hampshire and he played his part with 2 for 31 from nine overs. Warne also scored seven when Hampshire batted, but he came in at a time when defeat wasinevitable.
Only four Hampshire batsmen reached double figures and the top scorer was Lee Savident, who made 25, and was only playing because of a warm-up injury to Peter Hartley.