WARNING: The following article contains images that some readers may find confronting.
Sunday's racing at Caulfield has been marred by a shocking fall that resulted in Orient Line being humanely euthanised.
Beau Mertens managed to walk away from the nasty looking fall in a race at Caulfield, with the star young jockey complaining of a sore knee.
First reports suggested Mertens would be taken to hospital for further assessment after the fall from Orient Line in the Matthew Davies Handicap (1600m), but last season's champion Melbourne apprentice later emerged at the track after being attended to on-course.
Mertens was limping with an ice pack in hand but thankful he wasn't more seriously hurt.
"I've got a bit of a sore knee but obviously I'm blessed to get out of it and be able to walk off track," Mertens said.
Mertens and Orient Line came crashing to the turf just before the 200m mark of the race in the home straight.
Orient Line suffered a catastrophic injury and had to be humanely euthanised.
Mertens blamed himself for the fall.
“I got a bit excited as he was travelling that well. I should have come back and looked for a different option but I got too close and unfortunately clipped a heel and it all happened too fast,” he said.
Mertens said he was likely to see Racing Victoria's doctor Gary Zimmerman on Monday.
"It's a bit sore now but a bit of ice will help it and I'll see how I go tomorrow," he said.
"I'll probably visit Gary Zimmerman and see what he thinks. But I should be fine I think."
The incident comes after Regal Monarch was also euthanised after a similar fall on Melbourne Cup day.