Richard Johnson is now as short as 1/14 to retain his National Hunt Jockeys title after it was confirmed today that Sam Twiston-Davies could be out of action for up to a month.
Twiston-Davies was 12 winners behind Johnson before a fall on Sunday at Chepstow left the 23-year-old with spleen problems. His boss Paul Nicholls has suggested his charge may not return until Cheltenham's three-day Open meeting on November 11.
Nicholls told www.gloucestershirelive.co.uk: "It's disappointing as things have been going well. It's a big blow for Sam. "These things happen and the sooner he's back, the better."
"He could be out until Cheltenham's big meeting in November. Whether it's that long or two weeks, we wish him a speedy recovery. When a jockey damages their spleen you have to give it a bit of time.
The injury has seen Twiston-Davies' odds for the title drift from as short as 5/2 out to as big as 6/1.