Mackenzie cleared for British Grand Prix.

Japanese Grand Prix winner Billy Mackenzie underwent an x-ray on his broken left hand on Tuesday - and has now been given the all-clear to compete in his home British Grand Prix this weekend.

The Yamaha rider currently stands sixth in the MX2 World Championship but sought medical attention after two difficult outings in Bulgaria and Italy from which he was only able to pick up 18 points.

Visiting a hand specialist the 22 year old Scot was told that the broken metacarpal would heal fully in four weeks. He has been given a special splint to support the hand when riding and is unable to practice during the week. The x-ray revealed that the break had moved slightly after the punishment taken at Sevlievo and Montevarchi but was starting to mend.

Mackenzie will now travel to Matterley, only a few miles from his Southampton home, and receive pain killing injections before the eighth round of fifteen this campaign. 'Mac' won the first moto on the Isle of Wight for the Grand Prix of England last year and will be chasing a repeat victory this Sunday.

"I'm getting really excited about it," said Billy of his upcoming home race. "I still remember last year and seeing everyone; all the cheering, flag waving and people leaning over the fences shouting at you. That kind of home advantage worked for the Italians last week.

"I expect to be running at the front and I hope with two good starts I will give everyone something to shout for. It will take a lot to stop me pushing all the way for the win," he warned.

The British Grand Prix will take place just outside of Winchester and is signposted from the nearby M3 motorway from London.