Former Grand National winning jockey Robbie Power has confirmed he will not be riding at next week's Galway festival due to upcoming surgery on an old back injury.

Power disclosed the news on Twitter this afternoon, adding that he hoped to be back in the saddle in time for the Listowel festival in September.

"Unfortunately I have to undergo surgery this week on an old back injury and won't be fit for next week’s Galway Festival. Disappointing but hopefully will be back in September in time for Listowel," wrote Power.

The Meath jockey has enjoyed numerous Group 1 successes over the years, winning the Aintree Grand National aboard Silver Birch in his second ride in the race in 2007.

He enjoyed a bumper year in 2017, winning the Cheltenham Gold Cup and the Punchestown Gold Cup on the Jessica Harrington-trained Sizing John.