Per that report, Williams "had multiple options but liked the fresh start Kansas City represented."
Williams, 26, rushed 120 times for a career-best 426 yards and a touchdown in 2017, adding 10 receptions for 93 yards. Pro Football Focus gave him a below-average grade of 68.2 for his efforts.
In Kansas City, he'll join a crowded backfield that includes 2017 breakout star Kareem Hunt, offseason signing Damien Williams and the returning trio of Akeem Hunt, Charcandrick West and Spencer Ware. Kansas City won't enter the 2018 season with six running backs on the active roster, so a fight for roster spots should emerge behind Hunt in training camp.
With Damien Williams likely to battle West for the third-down role, that will leave Kerwynn Williams fighting for the backup spot with Akeem Hunt and Ware, who is attempting to return from a knee injury that cut his 2017 season short.
Williams may be seeking a fresh start, but he'll need to turn heads in a big way to survive Kansas City's logjam at the position.