Proper Beau could be asked to atone for a disappointing run at Sandown last week with an outing at Musselburgh on Saturday.
The Bryan Smart-trained juvenile was an impressive winner on his debut at the Scottish track and headed for the Listed National Stakes at the Esher track from his North Yorkshire base.
However, his fate was sealed early and he trailed in last of six.
“He ran so disappointingly at Sandown – I was gutted,” said Smart.
“Graham (Lee) said he banged himself coming out of the stalls and took a false step. After that he never quite felt 100 per cent the same.
“Whether that was the reason, I don’t know. I’ve entered him in the Edinburgh Castle on Saturday, but he’ll do a bit of work, see where we are and take it from there.
“I was gutted, though. He’s a nice horse and works well so I know how good he is, it was very frustrating.”
Smart had high hopes for Antagonize early in the year after he won both his starts at two, but he ran far too free in the Burradon Stakes at Newcastle in April.
“You can forget Newcastle. He was too strong, like a bull in a china shop so we’ll take our time with him,” said Smart.
“He’ll probably end up sprinting, but we’ll take our time and let him chill out.
“He’s got all the gears, we’ve just got to make sure everything is right before we run him again. Graham said he’s got loads of speed.”