New South Wales horseman Paul Messara is wary of new blood against Ortensia, including an unbeaten colt racing in the same silks as Melbourne Cup winner Dunaden, when the sprinting mare continues her international campaign in the Nunthorpe Stakes tomorrow (NZT).
Familiar names, such as July Cup winner Mayson, Kings Stand Stakes runner-up Sole Power and established English sprinters Bated Breath and Dandy Boy are expected to be among Ortensia's Nunthorpe rivals.
However, bookmakers think it might be an emerging sprinter, like the 3-year-old Pearl Secret who poses the biggest threat to Ortensia, while Messara says the inclusion of several 2-year-olds in a possible 30-horse field might hold the key to the 1000m York dash.
"This is the first group race over here with the 2-year-olds involved [for the first time] and they get a massive relief in terms of weight," he said.
"They get around 49kg, so they get a lot off the older horses and that will make it interesting."