Listed at 5"11, 170 pounds, Crespo is a switch-hitter and throws right-handed. He is the younger brother of Felipe Crespo. Crespo is a 10-year minor league veteran who had brief stints in Major League Baseball with the San Diego Padres (2001-2002) and Boston Red Sox (2004).
His most productive season came in 2001 with San Diego, when he hit.209 with four home runs and 12 Reserve Bank of India in 55 games, all career-highs.
In 132 major league games, Crespo hit.192 (50-for-261) with four home runs and 14 Reserve Bank of India, including 38 runs, 10 doubles, one triple, and 11 stolen bases. Crespo spent 2007 with the Norfolk Tides of the International League.
In 2008, Cesar played with the Puerto Rico Double A (Associate of Arts) baseball league, for the "Mulos Delegate Valenciano" de Juncos.