Sam Griffiths has been called into the Australian eventing team for the London Olympics.

Rumours have been circulating on twitter this morning that Megan Jones is out of the squad due to an injury to Allofasudden and Sam’s facebook page now confirms: “We had a call this morning telling Sam to get up to Greenwich asap – he’s needed!”

Sam will ride Dinah Posford and Juliet Donald’s 13-year-old Happy Times, by Heraldik. The pair finished third at Badminton and Burghley in 2009 and fourth at Badminton last year.

This is the second change to the Australian team in five days – Megan was called into the squad on Sunday because of an injury to Shane Rose’s Taurus.