Cheltenham history-maker Frost out of Grand National
Bryony Frost will miss next month's Grand National after breaking her collarbone on Monday.
Frost made history at last week's Cheltenham Festival when she became the first woman to ride a grade one winner at the event.
She had been expected to try and improve on her fifth-place finish in last year's Grand National, but a broken collarbone – suffered at Southwell on Monday – means she will not race.
"Yesterday I went to see an extremely good specialist in Cardiff, where my x-ray results have shown that I've fractured my clavicle," she said in a statement released by the Jockey Club.
"I've 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."
The Grand National meeting takes place at Aintree from April 4-6.