Celtics sign Williams, Richardson to contract extensions
BOSTON (AP) — The Celtics have signed center Robert Williams III and guard Josh Richardson to contract extensions, the latest in a flurry of moves by Boston as it tries to shore up its roster before training camp. A first-round selection in 2018, Williams appeared in a career-high 52 games with 13 starts last season, averaging a career highs in points, rebounds, assists, steals, blocked shots, and minutes. The 27-year-old Richardson was acquired in a trade with Dallas last month. His offensive numbers took a dip last season with the Mavericks. But he is just two seasons removed from averaging a career-high 16.6 points with Miami.