Fog City Stable’s Thoroughbred Roman Ruler, fifth as the 2-1 favorite in the Bessemer Trust Juvenile (gr. I) at Lone Star Park on Oct. 30, is scheduled to undergo surgery Nov. 7 to remove an undescended testicle.

“He’s a cryptorchid (ridgling), and this is something we’ve been thinking about for a while,” said trainer Bob Baffert.

Baffert did not point to the condition as an excuse for Roman Ruler’s 3 3/4-length defeat at the hands of 28-1 longshot Wilko, but did say it has bothered the Fusaichi Pegasus colt in the past.

“His exercise riders have always talked about his hind end and how he swishes his tail,” Baffert said. “It can be painful for some horses and gets worse as you go along. It plays on their mind, too