After playing in the amateur and country leagues in 2013, he joined Subiaco in the WAFL in 2014 and helped the team win the premiership that year and the next.

He was picked up by the Fremantle Dockers in the 2015 AFL national draft and scored 10 goals for the team in the six games he played in the 2016 season.

[4][5] Yarran participated in the Clontarf Foundation's program to improve the lives of young Indigenous men through football.

[15] A few weeks earlier he pleaded guilty to a charge of disorderly behaviour and was fined $800 after being arrested outside a Leederville nightclub in June 2016.

[16] The club also imposed sanctions on Yarran including undertaking an ongoing counselling program and a period of volunteer work with a community organisation.

[20] He kicked five goals in their grand final match against his old team Subiaco to help Peel win their first premiership.

Fremantle CEO Steve Rosich said "[Yarran] and his management believe that focusing on his personal and off-field matters at this time needs to take priority over his football career.

[24] His defence lawyer said Yarran fell into the wrong group of peers and started using drugs after earning more disposable income.

[28] Later in March, Yarran was acquitted of an unlawful wounding charge after prosecutors said there was no reasonable prospect of him being convicted.

[29] His defence counsel said the charge had triggered Yarran's methamphetamine addiction but that the AFL Players Association was assisting with his rehabilitation.

[30] On 6 April 2018, Yarran appeared in court and pleaded not guilty to a charge of attempted aggravated home burglary with intent.

[31] Days before his death, Yarran was subject to verbal abuse by players on the opposing team at his last football game.