Born in Sheffield, Asif's family emigrated to England from Kahuta in Pakistan.[2] He started boxing in 2002 and won three of his four professional fights at cruiserweight before retiring in 2012.[2]
Having worked in property development, Asif was drawn back into boxing when former world champion Amir Khan asked him to help out with his training for a fight against Billy Dib in 2019.[2] He founded GBM Sports in 2022, with the company promoting its first show at the Magna Centre in Rotherham on 11 March 2022.[3]
In June 2024, GBM signed a multi-fight contract with sports streaming platform DAZN.[4] The company staged its first outdoor stadium show at the Eco-Power Stadium in Doncaster on 23 May 2025, headlined by the WBO female lightweight title fight between champion Terri Harper and challenger Natalie Zimmermann.[2]