The 22-year-old made his decision official with a post on Instagram:
The reigning West Coast Conference Player of the Year, Williams-Goss shone during his lone season with the Bulldogs after he transferred from the Washington Huskies.
Over 38 games, Williams-Goss averaged 16.8 points, 6.0 rebounds, 4.7 assists and 1.7 steals while shooting 48.6 percent from the field, including 36.8 percent from three. According to Sports Reference, Williams-Goss was one of six players in the country to top 16 points, six boards and four dimes a game during that stretch.
Now headed to the pros along with former Bulldogs teammate Zach Collins, Williams-Goss will have to convince teams at the next level he can overcome a lack of elite athleticism and make a consistent impact as a scorer, distributor and stout defender.
At present, Williams-Goss fits the mold of a mid-second-round prospect who could use May's NBA Draft Combine in Chicago to boost his stock and wiggle into the back end of Round 1.
For more news, rumors and related stories about Nigel Williams-Goss, the Gonzaga Bulldogs and the NBA draft, check out the NBA draft and Gonzaga streams on Bleacher Report's app.