Twenty-year-old Borrello has ripped apart the competition with four goals in four games, while his fellow frontman Maclaren, has three.

The pair, who occupy the top two slots in the scoring charts, have played a significant role in the Roar's blistering start to the season and their second-place standing - only one point behind Sydney.

They present as the unbeaten Sky Blues' most substantial test yet, when they host the Roar at Allianz Stadium in Friday night's top-of-the-table clash.

But Brosque has backed his team's improved defence to contain coach John Aloisi's spearheads, declaring they've managed more dangerous threats before.

"They're young, they're exciting, they're confident.

"And judging by his comments maybe a little bit too cocky, Brosque said.

"We've got a lot of experience at the back there with Matty Jurman and Jacques Faty.

"They've handled bigger and better players before, so I'm sure they'll be able to contain them."

Arguably the form defender of this season, Matthew Jurman's settled combination with Faty has ensured Sydney have let in just two goals in four games, a significant imporvement on last season's defensive frailties.

Graham Arnold's side conceded 35 goals in 27 games in the 2014-2015 season, 20 of which came in home matches.

"A lot was made of the amount of goals we conceded last year, so we've done a lot of work in the off-season in containing teams and trying to restrict the amount of shots they have against us," Brosque said.

Jean Carlos Solorzano and James Donachie have recovered from injury in time for the top of the table clash.

Solorzano (foot) and Donachie (quad) are set to make their first appearances of the season at Allianz Stadium after coach John Aloisi confirmed the pair will both be part of his 18-man squad for the top-of-the-table clash.

However, veteran goalkeeper Michael Theo (quad) will miss a third consecutive game, while Spanish midfielder Javier Hervas is at least another week away from making his A-League debut.