Reggie Williams went from not being noticed as a college recruit (he attended Virginia Military Institute), to going undrafted, to a Summer League walk-on, to being picked up by the Sioux Falls Skyforce in the NBA D-League, to a 10-day deal with Golden State in the '09-'10, to a guaranteed deal for the final weeks of the season and all of 2010-11.
That's quite a journey.
That first Golden State stint led to him averaging 15.2 points and 4.6 rebounds on 49.5% shooting from the field. He didn't stick long term, but showed skills as a NBA wing. In his 13 games with the Blue this season, Williams has averaged 16.8 points, 5.3 rebounds, 3.3 assists and 1.08 steals in 31.9 minutes per game (in 69 career games in the D-League, he's averaged 22.3 points, 5.6 rebounds, and 3.8 assists in 37.7 minutes).
Williams brings another healthy body to the Spurs somewhat crowded wing rotation. His shooting/scoring (He's a 37.1% career three point shooter in the NBA; he also led the NCAA in scoring in his last two college seasons, averaging 28.1 and 27.8 points per game, respectively.), and personality are the two biggest proponents to his signing.
Though he's already 28 years old, his coachable demeanor will be essential for his success underneath Spurs' coaches that are keen on advancing his skill-set and understanding of the game.
Williams has previously played internationally for San Miguel Beerman of the Philippines (2014), Caja Laboral of Spain (2011) and JDA Dijon of France (2008-09) and in the NBA for the Oklahoma City Thunder (2013-14) and Charlotte Hornets/Bobcats (2011-13). In his NBA career (180 games), he has averaged 8.5 points, 2.6 rebounds and 1.6 assists in 19.7 minutes per game.