Basseterre (St. Kitts), June 13: In-form Australia opener David Warner has been ruled out of the remainder of the tri-nation cricket series with a fractured left index finger.

The team vice-captain sustained the injury while fielding during their 36-run victory over South Africa in the fourth game of the tournament at Warner Park on Saturday, reports CMC.

Subsequent X-rays revealed on Sunday that the damage would keep the left-hander out of action for up to six weeks, or could even require surgery.

"The X-Ray showed an intra-articular fracture of the distal phalanx of the index finger of the left hand - the top part of that finger," team doctor Geoffrey Verrall said on Sunday.

"We will assess the situation over the coming days to see if the injury requires a surgical option but should that not be the case then David is likely to be available to return to play in somewhere between two and six weeks."

A decision will be taken on if Warner will remain on tour and whether or not a replacement will be summoned.

Warner, who struck 109 in Saturday's game, said he would try to take the positives from the injury layoff.

(Warner hits century as Australia defeat South Africa by 36 runs)