"Our primary concern is his mental and physical health and wellbeing, and also the wellbeing of his family, friends, teammates, coaches and staff at the club,'' the club president Ben Buckley said.
"The club is providing full and ongoing support for Majak and his family and also the players and the wider club community."
Daw was the first Sudanese Australian to play in the AFL when he made his debut for the Kangaroos in 2011. He's played 50 games for the club.
Where to get help:
• Lifeline: 0800 543 354 (available 24/7)
• Suicide Crisis Helpline: 0508 828 865 (0508 TAUTOKO) (available 24/7)
• Youthline: 0800 376 633
• Kidsline: 0800 543 754 (available 24/7)
• Whatsup: 0800 942 8787 (1pm to 11pm)
• Depression helpline: 0800 111 757 (available 24/7)
If it is an emergency and you feel like you or someone else is at risk, call 111.