Amir Khan needed just four rounds to beat Billy Dib (Super Boxing League/Dave Pinegar/Maynard Comms)

Amir Khan beat Billy Dib with a fourth-round victory in Saudi Arabia on Friday evening.

Khan, who earned £7 million for the fight in Jeddah, knocked Dib down twice before the Australian’s corner threw in the towel in the fourth round.

Dib was late replacement for Khan’s initial opponent Neeraj Goyat, who was forced to pull out of the fight after he was injured in a car crash.

Dib, a former IBF featherweight champion and IBO super-featherweight title holder, needed to move up two weight divisions to take the fight.

Khan was too much for Dib (Super Boxing League/Dave Pinegar/Maynard Comms)

And the difference in size showed straight away as Khan set the pace and began the fight on the front foot.

Khan registered his first knockdown in the second round as he caught Dib with a left-handed counter on the cheek.

Dib did his best to reply but could land anything meaningful against Khan, who picked his shots wisely.

In the fourth round, Khan let out a flurry of punches which sent Dib to the canvas for a second time and the towel was then thrown in to stop the fight.