"The Cowboys will continue to provide Matt and his family all possible support and the club would ask media to respect the privacy of the Scott family during this time."
Scott, 34, announced his NRL career would come to an end following the 2019 season. He has spent his entire 16 seasons as a member of the Cowboys after making his debut in round 19, 2004.
The Cowboys take on the Penrith Panthers on Friday night before finishing their home and away season with games against the Canterbury Bulldogs and Melbourne Storm.