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8. Dajuan Wagner, Cleveland Cavaliers (No. 6 in 2002)
One of the best high school basketball players of his era, DaJuan Wagner looked poised to be a star after his freshman year at Memphis.
Wagner averaged 42.5 points per game in high school, then averaged 21.2 points per game as a freshman for the Tigers. The Cleveland Cavaliers made him the sixth selection of the 2002 NBA Draft and no one really argued with the pick. A lot of people saw him as a young Stephon Marbury-type scorer, but it just never panned out.
As a 19-year-old rookie during the 2002-03 season, Wagner showed solid potential, averaging 13.4 points, 1.7 rebounds and 2.8 assists. But his career trajectory was Jerome Walton-like.
Wagner never played more than 47 games in a season, and after two more awful years in Cleveland, he sat out the 2005-06 campaign due to colitis. He returned with the Golden State Warriors during the 2006-07 season but only played one game. He then played just six games in the Polish league in 2007 and one comeback attempt was halted in 2015 after the league he signed up with folded.
In 103 career NBA games, he averaged 9.4 points, 1.4 rebounds and 1.9 assists per game. For his career he finished with exactly 0.0 win shares in four years. Ouch.