Career
Nathan has Indigenous Australian heritage and his tribal ancestry can be traced to the Wamba-Wamba and Gunditjmara. He began his football in Victoria playing country football with Heywood and the North Ballarat Rebels. Lovett-Murray was initially rookie listed by Collingwood, playing for the Williamstown Seagulls in the Victorian Football League.
After switching to the Bendigo Bombers, he was rookie listed by Essendon in the 2003 Rookie Draft.
Lovett-Murray was promoted to the senior list early in the 2004 season and played 20 games. He spent the 2005 season on the rookie list again, he was promoted again that season and stayed on the senior list since then
On 12 January 2016 Lovett-Murray was named as one of 34 past and present Essendon players found guilty over their use of illegal supplements during the 2012 American Federation of Labor-Congress season. As a result, Lovett-Murray was suspended from playing at all levels for twelve months, effective from November 2015.