• Mayer beats bitter rival Sandy Ryan in points decision
• WBO champion plans to ‘go for undisputed’ against Price

Mikaela Mayer retained her WBO world welterweight title in Las Vegas, beating Britain’s Sandy Ryan by unanimous decision to settle their bitter rivalry.

The American overcame a cut above the eye and Ryan’s rally in the later rounds, winning with judges’ scores of 97-93, 97-93 and 98-92. After her victory, Mayer targeted a title unification bout with another Briton, Lauren Price.