Grimaldi attended John F. Kennedy High School in Willingboro Township, New JerseyCuneo, Ed. "Duccilli, Lewis, Grimaldi relive time when Kennedy was king", Courier-Post, March 17, 1990. Accessed January 27, 2022, via Newspapers.com. "Yes, the Kennedy High School boys' soccer team in the mid-1970s was something special. And last night three members of that team relived that time when, from 1972 to 1974, Kennedy had no peer in South Jersey and few in the state. Former Kennedy coach Charlie Duccilli, forward Cleve Lewis and midfielder David Grimaldi were inducted last night along with former Cinnaminson coach Jay Phillips, former Willingboro youth coach Al Caseiro, Pine Hill youth coach Charlie Kellogg, former Millville goalie Trey Beck, former Sterling forward Dave Rauer and South Jersey Amateur Men's Soccer League commissioner Jim Moyer." before entering Rutgers University. He was a four-year soccer player at Rutgers and team captain his junior and senior seasons during which time he was selected as a reserve pool player for the US Olympic Soccer team. In 1977, Grimaldi became the 1st Rutgers soccer player drafted into the professional ranks by Coach Al Miller of the Dallas Tornado who selected him in the first round (fourth overall) of the North American Soccer League college draft. After seeing no first team time during his rookie season with the exception of two international matches against Zenith Leningrad and Monterrey, the Tornado traded Grimaldi to the Memphis Rogues where he played sparingly over two seasons due to multiple knee injuries/surgeries In 1979, Grimaldi moved to indoor soccer with the Cleveland Force of the Major Indoor Soccer League. He spent three seasons with the Force serving as co-captain and captain. In 1981, he returned to outdoor soccer briefly with the Cleveland Cobras of the American Soccer League before retiring in 1982 following his third knee surgery. In 1990 Grimaldi was honored with the retirement of his Rutgers soccer jersey and later named to the Rutgers All Legacy Team.
