Ruthless Lomachenko stops Kambosos to win IBF lightweight title in Perth

• Lomachenko stops Kambosos in 11th to win IBF title at 135lbs
• Ukrainian star, 36, targets unification of lightweight belts

Vasiliy Lomachenko has stopped George Kambosos Jr in the 11th round to win the IBF lightweight title at the RAC Arena in Perth, becoming a four-time world champion across three different weight classes.

The two-time Olympic gold medalist from Ukraine returned from a year-long layoff following a controversial loss to Devin Haney to punish his opponent over 10 rounds before dropping him early in the 11th. Kambosos beat the count but Lomachenko quickly closed it and dropped Kambosos again with a pair of body shots, which prompted his corner to throw in the towel.