Western Sydney Wanderers have bolstered their already imposing defence by signing Socceroo defender Matthew Spiranovic on a one-year deal.

The A-League premiers announced the signing of the 25-year-old central defender on Tuesday and Fairfax Media understands that he turned down offers from clubs in Europe in order to join the Wanderers for the upcoming season.

Heading west: Matthew Spiranovic has joined Western Sydney Wanderers after leaving Qatari side Al-Arabi. Credit:Getty Images

Spiranovic was on the lookout for a new club since leaving Qatari side Al-Arabi earlier this year and was attracted to the Wanderers due to their swelling supporter base, success last season and upcoming Asian Champions League campaign.

''I was here for two weeks training with the team and I thoroughly enjoyed my time here, got a bit of a taste for the club and was keen to come back,'' Spiranovic said.