Bush, the No. 1 pick in the 2004 amateur draft, was designated for assignment Thursday, ostensibly to make room on the 40-man roster for slugger Cliff Floyd. However, hours after Floyd's signing was announced, the Padres acknowledged they were looking into another off-field incident involving Bush.
Police in suburban El Cajon later confirmed that the 23-year-old Bush was being investigated for allegedly assaulting members of a high school lacrosse team.
Originally drafted as a shortstop and given a $3.15 million signing bonus by his hometown team, Bush flopped as a position player with San Diego and was converted to pitcher. He developed elbow problems and had reconstructive surgery in August 2007, which caused him to miss all of last season.
Two weeks after he was drafted, Bush was suspended indefinitely by the Padres after he was arrested at a bar across the street from the team's complex in Peoria, Ariz. Among the charges were underage drinking and that he bit one of the bouncers who tried to escort him out of the bar. Assigned to the Padres' rookie-level Peoria team, Bush was reinstated a month later. He pleaded guilty to disorderly conduct, trespassing and underage possession or consumption of alcohol.
Bush was involved in a bar fight last summer, also in Peoria.
To make room on their roster for Bush, the Blue Jays released right-hander Dirk Hayhurst, claimed off waivers from San Diego last October.
Also on Tuesday, the Padres hired John Vander Wal, a member of their 1998 World Series team, as a professional scout. Vander Wal played 14 big league seasons with eight teams. He was with the Padres from 1998-99.