[1][2][4][5][7] Clark made his debut for San Jose before he had graduated from college,[3][6] and played in twenty consecutive games for the club during his first season.
[8] While at San Jose, Clark spent a brief loan spell at Scottish side Aberdeen,[9] although he never made a league appearance at the club.
[10] He also played one game on loan to MLS Pro 40 during the 2000 USL A-League season.
[5][6][7][13] He led the Crimson to a 26–10–1 record in his two years there, earning bids to the NCAA tournament both seasons.
[14] He coached the Bluejays for one season, leading them to a 13–5–2 record and an at-large berth in the NCAA tournament, where Creighton reached the second round before losing to SMU in a shootout.