The spring campaign of David Vandyke’s Group 1 winning filly Yankee Rose is in doubt after the one-time Golden Rose favourite produced a sluggish piece of work on Tuesday morning that indicted a possible injury.

Yankee Rose is under a cloud of doubt injury-wise ahead of the 2016 Golden Rose Stakes. Photo: Steve Hart.

The star daughter of All American will be vetted on Wednesday for a comprehensive examination to discover the extent of her inflamed near-foreleg.

She was very flat in her Tuesday morning workout and the bookmakers have reacted accordingly in all-in markets for the $1 million Group 1 Golden Rose Stakes (1400m).

The Rosehill Gardens feature on September 10 was originally scheduled as the three-year-old season debut for Yankee Rose who won three of her four starts as a juvenile.

Her only loss was a second to Capitalist as a 21/1 shot in the $3.5 million Group 1 Golden Slipper (1200m) back in March, after which she won the Group 1 ATC Sires’ Produce Stakes (1400m) at Randwick on April 2.

She was earmarked for another elite level run in the autumn, but was scratched from the Group 1 Champagne Stakes (1600m) in mid-April on vet’s advice and Vandyke is hoping her current injury is only minor and won’t result in the same outcome this time around.

Yankee Rose’s only official trial since the Sires’ Produce produced a distant fourth at the Sunshine Coast over 850m when finishing over eleven lengths off the winner in the hit-out from August 2.

She again failed to turn up this week in her scheduled galloper, causing serious doubts to arise about her spring campaign.

As well as the Golden Rose Stakes in Sydney, which Yankee Rose has eased out from favouritism to $11 to win through Ladbrokes.com.au, she has been earmarked for Melbourne classics including the Group 1 Thousand Guineas (1600m) on October 8.

Futures Thousand Guineas markets have Yankee Rose as the $7 second favourite behind Chris Waller’s Silver Shadow Stakes winner from last Saturday Omei Sword.

The longer range target for Vandyke’s filly though is the $3 million Group 1 W.S. Cox Plate (2040m) at Moonee Valley on October 22, which she is at a current quote of $17 to beat Waller’s reigning champ Winx ($2.50).

As for the updated Golden Rose Stakes betting markets, Omei Sword shares $7 co-favouritism with Divine Prophet for Team Hawkes who scored an impressive win in the Group 3 Up And Coming Stakes (1300m) last weekend at Randwick.

To check out the full Golden Rose 2016 betting odds head to Ladbrokes.com.au now!