Fresh off his work with USA Basketball’s Select Team in scrimmages against the Team USA in advance of the Olympics, Jaime Jaquez Jr. has been added to the Miami Heat’s roster for the Las Vegas Summer League. Jaquez, who drew praise for his work in helping prepare the Olympic roster for the Paris Games, extended his stay in Las Vegas for what are expected to be a pair of appearances with the Heat summer roster, starting Saturday against the Boston Celtics’ summer roster. Jaquez had an impressive NBA debut in summer league last year after being selected No.