Central Coast Mariners have won their third-straight win, as Paul Okon's men defeated Western Sydney Wanderers 2-0 away from home on Sunday afternoon.

Irish striker Roy O'Donovan broke an extended deadlock, scoring his ninth and 10th goals of the season to help his side get all three points at Sydney Showgrounds.

The Wanderers had the better of the game in the first half, with the home side having four shots to one and two shots on target to none.

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Unfortunately for the home crowd, neither chance was converted, and the game was scoreless at half-time.

The Wanderers had an early chance in the second half, with Mitch Nichols spraying a shot over the bar after 55 minutes.

Brendon Santalab had another great chance eight minutes later - Jack Clisby ran down the left, and swung a great cross in to Santalab at the back post, but his volley from close range went narrowly wide.

The Wanderers were punished almost immediately, with defender Jonathan Aspropotamitis penalised for holding Liam Rose inside the box. When Rose fell over, the referee Kris Griffiths-Jones pointed to the spot.

O'Donovan converted the spot-kick, and the Mariners led with 25 minutes left.

The Wanderers kept pushing for an equaliser, but O'Donovan nearly doubled the lead when he snuck in at the near-post to flick a free-kick just wide.

He made amends, however, on 77 minutes, when a great through ball got behind the defence, and O'Donovan controlled it and then clipped it perfectly over Vedran Janjetovic into the Wanderers' net.

The second goal set off wild celebrations, with Mariners manager Paul Okon running on to the pitch to jump into the players' arms.

The win was critical for the Mariners, who could have been eight points off the Wanderers in sixth spot if they had lost.

Both teams had won just four games for the season, with the Wanderers the mast of the draw, having shared the spoils with opponents nine times in 2016/17.