When the Sacramento Kings finally signed Russell Westbrook, that meant someone had to get cut from the roster for the regular season. That cut was Terence Davis, who was unsurprisingly waived after the Kings won their final preseason game against the Los Angeles Lakers.
An NBA roster can have a total of 15 players on regular contracts with an additional three players on two-way contracts. Going into training camp, each team will have extra players who they have to waive before the regular season begins to get to those numbers.
Throughout the preseason, the Kings have been making cuts to get the roster down to the league maximum.