Jockey of the moment Bryony Frost will miss Aintree's Grand National meeting next month after an x-ray revealed she had broken her collarbone in a fall at Southwell on Monday.

The 23-year-old, who made the front page of several national newspapers after her success on Frodon in the Ryanair Chase at Cheltenham last Thursday, visited a specialist in Cardiff this week.

Frost said: "Yesterday I went to see an extremely good specialist in Cardiff, where my x-ray results have shown that I’ve fractured my clavicle." 

The Grade 1-winning rider added in her Matchbook blog that she will go for an update in two weeks' time, and she relayed her thanks to the racing community. 

She said: "I suffered a fracture previously which healed well under pressure. My body’s response from that fracture makes me positive for when I go back for my assessment in a fortnight’s time and a swift return.

"I’ve been taken aback by all the support I’ve received since Monday. The racing world is an extremely caring one. Although we are all strangers within it, we become a family when we need each other and that’s the beauty of it."

Frost had been enjoying a brilliant season even before her Festival triumph with big-race victories in the Cotswold Chase and Caspian Caviar Gold Cup on Frodon, and the Badger Ales Trophy on Present Man.