UFC heavyweight champion Jon Jones needs to face interim champion Tom Aspinall next, says Jones' former rival Alexander Gustafsson.

Amid Tom Aspinall's desire to fight Jon Jones in a heavyweight unification title bout, a former UFC star has fired a warning the way of the British colossus.

The American MMA star is regarded as one of the best fighters of all time and one ex-foe has even likened him to former world ...