HOT SPRINGS, Ark. – The undefeated Gemologist is closing in on his 3-year-old debut, which will come next Saturday in the Grade 2, $500,000 Rebel at Oaklawn Park. Trainer Todd Pletcher said the horse is scheduled to work Sunday at Palm Meadows training center in south Florida, then fly into Arkansas on Wednesday. Javier Castellano has the mount in the Rebel, which as of Friday was looking like it could have a maximum gate of 14.