Wallaby Matthew Burke would like to see a fourth Australian Super 12 side in Melbourne, but is not interested in playing for it.

Burke was in Melbourne promoting the upcoming Test against the British Lions at Colonial Stadium on July 7 and believed a rugby side would be a success despite the popularity of the AFL.

Speculation has mounted in recent weeks of a potential fourth Australian side with Melbourne one of the front-runners to host the new organisation. A consultant is now reviewing the tournament with a view to expanding it. The recommendations will be released in July.

Any new side will be desperate to quickly attract high calibre players, but Burke would not be one of them, preferring to stay with the Waratahs for several more years.

Burke has more pressing matters and that is Monday's 30-man Wallaby squad announcement. The Waratahs captain is expected to be named, but he is no guarantee to reclaim the fullback's No.15 jersey from the Reds' Chris Latham.

Burke lost the jersey to the in-form Latham last year and was forced to make a return to the Wallaby starting line-up on the wing. Latham has returned to his best form in recent weeks, ensuring Burke has a tough job to get the fullback spot back.

Injuries to key players Stirling Mortlock and Ben Tune will force some changes, but Burke has no doubt that fullback is the position for him.

"I want to play in the position in which I'm most confident and obviously my most confident position is No.15," Burke said before training with members of the Western Bulldogs AFL side. "There's plenty of competition for places and it won't be easy. If I'm not at fullback, then somewhere in the team would be nice."

Burked weighed into the debate surrounding Colonial Stadium, saying the roof should be closed for the Test against the Lions. British officials have cried foul, that closing the roof would give the Wallabies an unfair advantage.

"Obviously if the weather's a bit inclement closing the roof might be the best thing," Burke said. "Close the roof, absolutely. It's so much more conducive to playing good football. When the teams play good football, obviously the spectators enjoy it a lot more."