Despite its success in England [ Images ], Autralia's vice-captain Adam Gilchrist [ Images ] says he is not sure if Tewnty20 format could be awarded official status at the international level.

"I'm not too sure on an international scale, one-off international maybe," Gilchrist was quoted as saying in a local daily in Sydney [ Images ] on Thursday.

He, however, said that a round-robin tournament without an official international status could be a considered in this format.

"I certainly feel as a result of that, there's scope for it to be incorporated somewhere into the programme," Gilchrist said.

Western Australia [ Images ] and Victoria played the abridged form of one-day cricket in front of 20,000 people at the WACA [ Images ] ground in Perth while Australia 'A' defeated Pakistan in another Twenty20 [ Images ] match at the Adelaide Oval today.

The concept, which began in England two years ago and has also been played in South Africa [ Images ], involves a 20-over-a-side match with modified rules that encourage quick over rates and even quicker run rates.

Among the unique rules is a 90-second deadline for incoming batsmen to arrive at the crease and strict run penalties for teams which fail to bowl 20 overs in 90 minutes.

Batsmen are awarded a free hit for the delivery following a foot-fault no-ball.

Australia and England are scheduled to play the first-ever Twenty20 international in Hampshire on June 13 this year.