Former Republic of Ireland, Manchester United and A-League player Liam Miller has died aged 36.
Miller, who won the A-League title with Brisbane Roar in 2014, was a runner-up with Perth Glory in 2012 and also played with Melbourne City, had been suffering cancer.
He won 21 caps for Ireland between 2004 and 2009 and made his professional debut in 2000 for Scottish Premier League side Celtic.
A-League boss Greg O'Rourke says many people involved with the competition are feeling the loss of the highly regarded international.
"There has been an outpouring of emotion and respect from clubs, players and fans following the tragic loss of Liam Miller," he said in a statement issued by Football Federation Australia.
"That underlines the esteem in which Liam was and will always be held."
O'Rourke said there would be a moment of silence before Saturday night's match between Melbourne City and Sydney FC, while Brisbane Roar's W-League side would wear black armbands on Sunday.
"Our thoughts go out to those closest to Liam - his wife, children, family and friends," he added.
Reports emerged in November that Miller had been battling pancreatic cancer and was receiving treatment in the United States, where he played for Wilmington Hammerheads in 2016.
He played for 12 clubs during a 16-year career that took him around the world.
After coming through the youth ranks at Parkhead, Miller helped the Celtic win the Scottish title in 2004.
He moved south to Old Trafford on a free transfer, making 22 appearances under Sir Alex Ferguson in two seasons - which included a spell on loan at Leeds United - before joining Sunderland in 2006.
"Everyone at Leeds United are deeply saddened to hear of the passing of former #LUFC midfielder Liam Miller. Our thoughts are with his family and friends," Leeds wrote on Twitter.
Leeds added a video of Miller scoring the winner in a dramatic 4-3 victory over Southampton in 2005.
He was part of the Black Cats' squad that won promotion to the Premier League in 2007.
"We are saddened to hear this evening that former #SAFC midfielder Liam Miller has passed away. Our thoughts are with his family and friends at this time," the Championship club wrote on Twitter.
Miller was on the move again in 2009, this time to QPR with a short spell at Loftus Road followed by a two-year stint at Hibernian before his Australian experience.
There will also be a moment of silence in honour of Miller prior to Sunday's W-League semi-final.