Trent Lucas Sainsbury (born 5 January 1992) is an Australian professional football player who plays as a centre back for Qatari club Al-Wakrah and the Australian national team. Sainsbury was born in Thornlie, Perth and played youth football with Perth Glory and the Australian Institute of Sport before starting his professional career with Central Coast Mariners. Sainsbury moved to PEC Zwolle in 2014. Sainsbury has made over 50 appearances for the Australian national team. He was a member of the Australia team which won the 2015 AFC Asian Cup. Early life Sainsbury was born in Thornlie, Perth, Western Australia. He attended Forest Crescent Primary School and Kelmscott Senior High School. Trent started playing football at a very early age at Armadale Junior Soccer Club in Armadale, Western Australia. Club career Youth Sainsbury began his youth career at Perth Glory in 2008 before moving a year later to the AIS where he was part of their National Youth League squad in the 2009–10 season. Central Coast Mariners In 2010, Sainsbury was signed by the Central Coast Mariners along with Sam Gallagher. Trent and Mariners teammate Marc Warren were selected to spend two weeks at Sheffield United's Academy as part of the two clubs' partnership. His senior debut came for the Mariners on 24 November 2010 in an F3 Derby draw with Newcastle Jets, with Sainsbury earning praise from coach Graham Arnold for his performance. Trent went on to make a total of nine appearances in the first team that year. During the successful 2011–12 campaign, it was announced that Sainsbury had signed a two-year contract extension with the club. The Mariners went on to win the 2011–12 A-League Premiership. Trent again made nine league appearances for the club in this season. After breaking into the first team in the 2012-13 A-League season, Sainsbury formed a formidable partnership alongside Dutch defender Patrick Zwaanswijk. This unit was central in helping the Mariners secure their maiden A-League Championship against Western Sydney Wanderers in the 2013 A-League Grand Final. The Mariners won the game 2–0 in front of 42,102 spectators at the Sydney Football Stadium. Commentator and former Socceroo Mark Bosnich rated Sainsbury as his man of the match. The official award went to Daniel McBreen. Following the game, it was speculated that Sainsbury had attracted serious interest from European clubs including Southampton, Roda JC, Basel and Middlesbrough. In March 2013, Sainsbury was nominated for