Danedream, winner of the 2011 Prix de l'Arc de Triomphe, has been confirmed in foal to Frankel.

The German filly went on to claim last year's King George at Royal Ascot but was denied the chance to defend the Arc due to quarantine restrictions at her Cologne training base following an outbreak of swamp fever.

The Cheltenham Festival has been dealt a blow with Flemenstar suffering a lung infection and Sizing Europe scratched from the Gold Cup.

Trainer Peter Casey said Flemenstar was "very unlikely" to run at Cheltenham next month after the diagnosis on Monday following his second to Sir Des Champs at Leopardstown.

"He'll be out for two to three weeks," Casey told the Press Association.

"It's a bad lung infection.

"He's going to be all right in the long term, but I would say Cheltenham is very unlikely now.

"The jockey (Andrew Lynch) thought something was wrong on Saturday and it looks like he was right."

Henry de Bromhead said it was "50-50" which race Sizing Europe would now contest after he was officially scratched from the Gold Cup.

The Queen Mother Champion Chase and the Ryanair Chase remain the two options for the talented 11-year-old.

Sizing Europe is already a dual winner at the Festival, lifting the Arkle Trophy in 2010 and the Champion Chase in 2011 as well as finishing second in the latter event last year.

"He's out of the Gold Cup and we've put him in the other two for the moment," De Bromhead said.

"We've no idea which race. It's definitely 50-50 now.

"We are always looking forward to Cheltenham when he's running. He's been super.

"He seems in good form, he seems well and we're happy with him at the moment."

Peter Moody, and just about everyone else, accepts that he will win the first leg of the Flemington Group One sprint double with Black Caviar in Saturday's Lightning Stakes.

But the trainer is also intent on maximising his prospects in the second leg, the Newmarket Handicap.

Moody will run his talented pair Golden Archer and Moment Of Change against their stablemate on Saturday mainly to keep her company in what could be her farewell to Melbourne.

They will then go on to the Newmarket three weeks later where the gloves will come off and they will be running for a Group One win of their own.

Moody said he had initially intended giving Moment Of Change a trial before the Newmarket, but then had a closer look at his racing record.

"It wasn't my intention to run him," Moody said.

"But I'd forgotten the horse had never been to Flemington before."

Rather than run for no reward on an inferior surface in a trial, Moody will be looking to pick up expenses and give Moment Of Change valuable experience of the Flemington straight track.

"He'll get full exposure to the straight and then he's got a nice three-week break to the Newmarket."

Perhaps the only regret Moody has coming into the Black Caviar Lightning Stakes is that he is virtually compelled to run Golden Archer against her.

"He's a high-quality sprinting horse who was always going to run," he said.

"Unfortunately he has to take on Black Caviar.

"I'm not kidding myself and expecting either of them to trouble their stablemate, but I'm expecting them both to run well."

It will be the Black Caviar of a year ago that runs in the Lightning Stakes at Flemington on Saturday, not the crotchety old mare who last raced at Royal Ascot.

Trainer Peter Moody said he hadn't been totally convinced Black Caviar's comeback was on schedule - or that it would happen at all - until the world champion sprinter galloped at Caulfield last Saturday week.

The Singapore Turf Club has stripped Victorian jockey Stephen Baster of his licence to ride in the Asian racing centre without providing a reason for the shock decision.

Baster rode in Singapore for more than 12 months without incident but the STC exiled the Group I-winning rider with a one-word statement on its website on Monday.

Melbourne trainer Danny O’Brien has described himself as "collateral damage” from a "clumsy” introduction of new drug testing procedures at last Saturday’s Flemington meeting.

Stewards kept The New Boy on Kutchinsky on track at Flemington before following the pair back to O’Brien’s on-course stables to conduct further tests in a new procedure Racing Victoria’s Manager of Integrity Services Dayle Brown said was aimed at "being unpredictable”.