4. David Wesley
Wesley went undrafted in 1992 mostly based on concerns of him being a six-foot shooting guard. After playing four years of college, he spent one season starring for the Wichita Falls Texans in the Continental Basketball Association before being signed by the New Jersey Nets.
Wesley played just 9.0 minutes per game as a rookie, but it was enough for the Celtics to sign him the following offseason where his career took off.
He was immediately a key role player and continued to improve over his three years in Boston. Wesley averaged 16.8 points, 7.3 assists, 3.6 rebounds, and 2.2 steals in 40.4 minutes per game during his final season with the Celtics. Boston won just 15 games, but Wesley earned a multi-year contract from the Hornets in the 1997 offseason.
The six-foot guard spent the next nine seasons as a starter for the Hornets and Rockets. He was a key scorer and shot-maker before 3-point shooting took over the league. Without his stop in Boston, David Wesley might not have played 14 years in the NBA or scored 11,842 points in his career.
The Boston Celtics helped him launch his career, but he was not the first undrafted great to play in Beantown.