By Chad CooperThe American Quarter Horse Association's all-time winningest rider, Alvin Brossette, was one of four jockeys injured June 9 during a 870-yard claiming race at Delta Downs.Brossette, who has 3,613 wins including 141 stakes wins with career earnings of $23,582,922, was taken to Christus St. Patrick's Hospital in Lake Charles, La., after receiving multiple injures when thrown from his mount.Wewoget, with Orlando Baldillez up, broke down on the backstretch while in second place causing Jazzing and Jiving, with Brossette, and Mb Faila Boot, with Michael Phillips under whip, to fall both ejecting their jockeys.Jockey Stevie Gillum was unable to steer Thunder Devil Dust clear of the spill, which then Gillum chose to jump from his horse. Thunder Devil Dust never fell and crossed the finish line without him.Brossette received the most severe injuries. He was placed in the ICU unit at Christus St. Patrick's receiving two broke ribs, a cracked vertebrae, and bruising of the muscles surrounding his heart. Brossette is recovering and has improved each day. He was sixth in the current jockey standings with 23 wins in 221 starts. Baldillez will miss the rest of the meet with a separated left shoulder. Baldillez was fifth in the standings with 25 wins in 186 starts.Phillips received a broken tailbone and Gillum escaped with minor injuries.