Jockey Jorge Ruiz, who fell shortly after the start of the first race at Gulfstream Park Saturday, was released from Aventura Hospital Saturday night after receiving stitches above his left eye. Ruiz, a 39-year-old native of Argentina, was hurt after being thrown to the turf course when his mount, 3-year-old filly Roscoe Village (Kantharos), stumbled and fell shortly after the start of Saturday's opener. Roscoe Village was uninjured. The track safety siren and lights were activated as Ruiz was being helped off track, causing several riders to pull up and...