India, June 22 -- Jon Jones hasretired from competition, UFC CEO Dana White announced, making Tom Aspinall thesole titleholder of the promotion's heavyweight division. White said that Jones called Friday, June 21, to tell the UFC about his retirement.

"Jon Jones called us last night and retired," White told reporters at the UFC on ABC 8 post-fight news conference.

Aspinall is also the third champion from Britain, after Michael Bisping and Leon Edwards. The first defense of his championship belt might come against Ciryl Gane.

Aspinwall is married toJustyna, a Polish woman, and the two share three children, two of whom are twins. Aspinall and Justyna are believed to have tied the knot after beingin a long-term relationship. Justyna has m...