Alex Brosque and Milos Ninkovic maintain Sydney FC's winning start

Sydney FC continued their perfect start to the A-League season with a comfortable 2-0 win over Newcastle Jets.

Skipper Alex Brosque and midfielder Milos Ninkovic both put away easy chances on Saturday to cement the Sky Blues' spot on the top of the table.

The competitive pacesetters have now tallied a maximum 12 points from their season-opening four games and have still yet to concede a goal in the campaign.

For the injury-ravaged Jets, the loss in front of 11,873 fans at McDonald Jones Stadium was their first of the year and easily their worst outing of the season.

The defeat for rookie coach Mark Jones was compounded by a possible knee injury to Ben Kantarovski, who had to be helped from the field late in the game.

It appeared to be an easy day at the office early for the visitors, who dominated possession and field position seemingly at will.

And it was a clinical Brosque who eventually got on the scoresheet first, justifying coach Graham Arnold's decision to make his first alteration to his lineup this year.

Defender Michael Zullo charged onto an aerial ball in the seventh minute that fell to Milos Ninkovic, and he duly dinked over for a cutting Brosque into an empty box.

The former Socceroo, inserted for David Carney on the left flank, finished coolly for his third goal of the season.

Matt Jurman and Filip Holosko also spurned good opportunities early, allowing the home side to slowly work their way into the contest.

Andrew Hoole was a rock for the Jets in attack, and one of his relentless efforts should have been rewarded just before half-time.

The former Sydney FC midfielder chased down a long ball that fell to a steaming Steven Ugarkovic who only had Danny Vukovic to beat, but shot wide.

The visitors made the Jets pay for the miss immediately after the break when Ninkovic fired for his second goal in as many weeks.

A long-range effort from Holosko could only be parried into the path of Ninkovic, who slotted home a straightforward chance to double his team's lead.