Born in Sydney, Wilkinson is one of three children. He is of Nigerian descent. At the age of four his family settled on the Gold Coast, Queensland and instantly began pursuing an interest in Athletics. Although excelling in athletics, Wilkinson also represented the Gold Coast in cricket, soccer and tennis. In 2008, he grew tired of the sports he had already tried and began playing Australian rules football for his school Palm Beach Currumbin High School, for the first time at 16 years of age. Although Palm Beach Currumbin High School was predominantly known for its rugby league program, Wilkinson elected to play Australian rules football. He studied Biomedical Science at Griffith University.
Junior football
Wilkinson signed up to play for the Broadbeach Australian Football Club's under 18 team in 2009 and was chosen to represent the Gold Coast Stingrays in state competition later that year. He began playing senior football for Broadbeach in 2010 and in just his fourth game earned a nomination for the AFLQ Rising Star Award. He was also named state captain of the under 18 Queensland Scorpions squad that competed in the 2010 AFL Under 18 National Championships. At the conclusion of the 2010 season, Wilkinson was drafted as a Queensland zone selection by his hometown Gold Coast Suns who were entering the professional Australian Football League in 2011.
AFL career
Wilkinson made his professional debut for the Gold Coast Suns in round 14 of the 2011 AFL season, against the Western Bulldogs. In his second game in the AFL he kicked his first goal while playing against Fremantle at Subiaco Oval. During his debut in 2011, Wilkinson was racially abused by Western Bulldogs player Justin Sherman. While competing against the Collingwood Magpies at the MCG in 2012, Wilkinson was racially vilified by a Collingwood member in the stands. Wilkinson set many fitness records while at the Gold Coast Suns. Despite only being 186 cm, 86 kg and 21-years-old at the time, he set a bench press record of 160 kg for three repetitions in 2013. He also set the 2 km time trial running record in 2013. During Wilkinson's AFL career he traveled to Arizona on three separate occasions from 2011-13 for off-season training and was a standout in the high altitude drills. He was delisted by the Gold Coast Suns at the conclusion of the 2013 AFL season and was signed by the semi-professional Northern Blues for the 2014 VFL season in an attempt to be redrafted into the AFL. In May 2018, Wilkinson made a formal complaint against the AFL in the Australian Human Rights Commission, with Wilkinson alleging that he was subjected to discrimination, vilification and harassment on both racial, sexual and religious grounds by AFL staff, the Gold Coast Suns, club officials and teammates, as well as opposition players and spectators during his AFL career.
NFL career
Arizona Cardinals
Wilkinson abruptly announced his retirement from Australian rules football in July 2015, stating his intentions to pursue a career in American football. Following his announcement, in August 2015, Wilkinson moved to Phoenix, Arizona in an attempt to secure a tryout with an NFL team. The Cardinals allowed Wilkinson to tryout twice for the position of cornerback in early 2016. Wilkinson signed an official contract with the Cardinals on 16 February 2016. Wilkinson stating after his signing that the cornerback position was very similar to what he played in the AFL.
