Up-and-coming Perfect Challenger served notice of his abilities and provided trainer Alwin Tan with a happy headache ahead of the $500,000 Singapore Guineas in two weeks.

Up-and-coming Perfect Challenger served notice of his abilities and provided trainer Alwin Tan with a happy headache ahead of the $500,000 Singapore Guineas in two weeks.

The every improving Cordoba proved ultra impressive when keeping his unbeaten record in-tact when saluting narrowly at Singapore on Sunday.

New Zealand Group 1 winner Warhorse came out for his first Kranji barrier trial on Tuesday morning, but was obviously still some way off his Singapore debut despite crossing the line first.