MILWAUKEE -- Brewers right-handed pitching prospect Santo Manzanillo, one of four players added to the 40-man roster this month, suffered a separated right shoulder in an auto accident Tuesday morning in the Dominican Republic.The Brewers said Manzanillo would undergo further tests to determine the severity of his injury. A power pitcher who turns 23 on Dec. 20, Manzanillo had a 1.75 ERA and 17 saves at Class A Brevard County and Double-A Huntsville in 2011, while holding opponents to a .194 average. The Brewers added him to their 40-man roster on Nov. 18 to protect Manzanillo from next month's Rule 5 Draft, putting him in line for his first Major League Spring Training camp. According to a report earlier Tuesday on Licey.com, the website of Manzanillo's Dominican Winter League team, a truck struck Manzanillo's Hummer on a highway in La Romana while he was on his way to the Brewers' new baseball academy. According to the website, Manzanillo, had cuts and bruises on his right shoulder and was taken by plane to Cure International Hospital in Santo Domingo. The Brewers signed Manzanillo out of the Dominican Republic in 2005. He missed all of '09 following Tommy John surgery on his right elbow, and 2011 represented a breakthrough season.