Brazilian bull rider Angelo Junior L. Rosseto fights against his bull to stay on and earn a score at the PBR Goliad Challenger event. (Lindsey Plotkin/Victoria Advocate)Australian bull rider Boston Leather fights to stay on his bull during the first round of rides at the PBR Challenger event in Goliad. (Lindsey Plotkin/Victoria Advocate)Callie Welty, Miss Rodeo Texas and a Goliad Native, rides her horse with the American flag for the playing of the national anthem at the annual PBR Challenger event in Goliad. (Lindsey Plotkin/Victoria Advocate)Some of professional bull riding’s top competitors descended on Goliad on Saturday as the Professional Bull Riders Challenger Series returned to the Goliad County Fairgrounds. Miss Rodeo Texas Callie Welty, a Goliad native, also appeared on horseback, carrying the American flag during the national anthem.