Now the ex- heavyweight champion has again teamed up with Connexus subsidiary, Bitcoin Direct, to release a digital wallet.
The branded wallet — which will allow users to store, purchase or sell the digital currency bitcoin — is already available on iOS and Bitcoin Direct says it is coming soon for Android users.
Users will see a menu background adorned with the ex-boxer's tribal face tattoo.
Bitcoin is a virtual currency that allows users to exchange online credits for practically anything, from illegal drugs to food, and is generated through an open network managed by its users.