Background
Hellquist grew up in the Stockholm suburb Kista, and began playing football in Djurgården"s youth team at the age of five.
Hellquist grew up in the Stockholm suburb Kista, and began playing football in Djurgården"s youth team at the age of five.
During the 2008 pre-season, he was moved up from Djurgården"s youth team Hellquist made his Allsvenskan debut on 2 July 2008 against Elfsborg as a substitute. He was named for the Swedish U17 national team in a friendly against Latvia in April 2007.
The game was his debut in any of the Swedish national teams, and he also scored the last goal in the 6–0 victory.
He drew attention from English club Arsenal which offered him a place in their U17-team Number transfer was made due to a hip injury.
Hellquist also had a trial at Birmingham City and Italian club Empoli showed interest in him. He began playing with the senior team during the 2008 pre-season.
He played his first game in Svenska Cupen in the 4–2 loss against IK Sirius, and also scored his first goal in the Cup.
He extended his contract with Djurgården for an additional three years in March 2010. On 15 January 2014, he signed a contract with Austrian team South Carolina Wiener Neustadt.