On May 6, 1983, Valdez was arrested at Fenway Park by members of the Boston Police Department during a game against the Seattle Mariners.[4][5] Valdez had not played for the team since the end of April,[6] and was not in uniform when arrested.[4][5] Charged with statutory rape, it was subsequently reported that the minor involved had lied to Valdez about her age.[5] The charges were dismissed in July of that year, after a grand jury refused to return an indictment.[7]
Following his arrest, Valdez was suspended with pay by the Red Sox and later designated for assignment.[7] He did not play in another major league game. He played in Minor League Baseball for the Red Sox organization though 1984, and then for the Chicago Cubs organization through 1988.[2]