SWINDON Robins rider Nick Morris will miss the remainder of this year’s World Cup after being ruled out with injury.

The 23-year-old Australian suffered a heavy crash in his opening race at World Cup Event One on Saturday night, scoring just five points as the Aussies finished second behind Great Britain at King’s Lynn.

The meeting marked Morris’ return to action after being forced onto the sidelines with a concussion suffered while riding for Berwick Bandits in the SGB Championship on July 23.

The result at the Adrian Flux Arena means Mark Lemon’s men will have to negotiate the last-chance Race-Off in Poland on Friday night if they want to qualify for the World Cup final 24 hours later.

They will have to do so without Morris, with reigning Australian national champion Sam Masters called up in his place for the impending meeting at Leszno.

Morris announced his withdrawal via Twitter today, stating: “Good luck to Team Australia in the Race Off. Gutted I can’t be there to race but I’ve made the right decision. Off to some sunshine for the week.”

Swindon skipper Jason Doyle had been forced to sit out in King’s Lynn because of an injury of his own, with the 31-year-old having undergone surgery just a fortnight ago after suffering broken bones in his right foot.

It is not yet known if he will be fit to return for Australia later this week.