Drama unfolded at Warwick Farm on Tuesday when jockeys and stewards inspected the track after Corey Brown and Daniel Ganderton's mounts fell in the second race on the card.Brown's mount Viva Las fell at the 500m mark in the Milperra Handicap (1600m) and Ganderton's mount Saranah Gold, who was racing behind Viva Las, also came down.Following the race, riders were concerned with a section of the course proper near the rail between the 600 and the 300 metres and as a result a decision was made to m

Drama unfolded at Warwick Farm on Tuesday when jockeys and stewards inspected the track after Corey Brown and Daniel Ganderton's mounts fell in the second race on the card.

Brown's mount Viva Las fell at the 500m mark in the Milperra Handicap (1600m) and Ganderton's mount Saranah Gold, who was racing behind Viva Las, also came down.

Following the race, riders were concerned with a section of the course proper near the rail between the 600 and the 300 metres and as a result a decision was made to move the running rail 3.5 metres out between those points before it was determined safe to continue with the meeting.

There was a delay of 35 minutes before the running of race three.

"In race two where Corey Brown and Daniel Ganderton fell, Nash Rawiller's horse (who was leading) blundered near the 500-metre mark," acting chief steward Marc Van Gestel said.

"Corey Brown was following and it appears as though there might be an issue that he's struck heels and that's where he has come down.

"We looked at the track - myself, Jim Cassidy and Jon Grisedale who is president of the Jockey's Association - and we deemed that the section off the fence about three metres was unsafe for racing.

"There was significant wear there (between the 600m and 300m mark), there was large divots starting to form. We then, in conjunction with the jockeys, agreed to move the rail out three and a half metres and that gave us a new pad that hadn't been raced on at the previous meeting and also hadn't been raced on today.

"Jockeys were satisfied with the rail movement, whilst it was tight, and the subsequent races have been run without incident."

Brown injured his left shoulder in the fall.

Meanwhile, Gai Waterhouse produced an impressive first starter with Boto Vermelho ($2.30 fav) taking out the www.royalrandwick.com Handicap (1200m) by 2-1/2 lengths.

It was part of a winning treble for the trainer.

"I think she is top drawer," Waterhouse said.

"I always thought she could be a Flight Stakes filly in the spring.

"We selected this race as a kick-off point and she'll go to the Keith MacKay Stakes next and possibly Queensland."

The Listed Keith MacKay Quality (1200m) is at Randwick on April 17.

Waterhouse's other winners were Autumn Ember in the second race and Flying Success in race six.

Damien Oliver has been named as Brown's replacement on the Gai Waterhouse-trained More Strawberries in Saturday's $3.5 million Golden Slipper.