Career
He played club football in Australia for the Balmain Tigers of the National Rugby League, and in England with Wigan Warriors and Bradford Bulls of Super League. His usual position was at fullback. Australia
While attending John Paul II Senior High School in Marayong, New South Wales, Withers was selected for the Australian Schoolboys team in 1994.
England
Withers played for Bradford Bulls at centre in the 1999 Super League Grand Final which was lost to Street Helens RLFC. He played for the Bradford Bulls at fullback and scored 3 tries in their 2001 Super League Grand Final victory against the Wigan Warriors.
He is also the only player to have recorded a hat-trick in a Grand Final, doing so against Wigan Warriors for Bradford Bulls in 2001. Withers was selected for Great Britain in the 2001 Ashes Series, but did not play due to injury concerns.
Withers later withdrew himself from the Great Britain squad without playing a game. His initial selection in the Great Britain training squad by Australian coach David Waite created some controversy.
As Super League VI champions, the Bulls played against 2001 NRL Premiers, the Newcastle Knights in the 2002 World Club Challenge.
Withers played fullback and scored two tries in Bradford"s victory. Withers played for the Bradford Bulls at fullback, scoring a try in their 2002 Super League Grand Final loss against Street Helens Reconstruction Finance Corporation. Withers played for the Bradford Bulls at centre in their 2003 Super League Grand Final victory against the Wigan Warriors. Withers played at fullback in the Bulls" 22–4 victory.
He also played for Bradford at fullback in their 2004 Super League Grand Final loss against the Leeds Rhinos.
Withers played for the Bradford Bulls at fullback in their 2005 Super League Grand Final victory against Leeds Rhinos. He scored 108 tries in 170 games for the Bulls.
As Super League champions Bradford faced National Rugby League premiers Wests Tigers in the 2006 World Club Challenge. Withers played at fullback in the Bulls" 30–10 victory.
Withers made his Wigan debut in a 16–10 defeat by Warrington Wolves at the JJB Stadium on 9 February 2007.
In June 2007 a knee injury forced Withers to retire.
