The Raptors had picked him up June 30 from the Thunder, who got him June 25 from the Hornets, who traded for him earlier that day with the Grizzlies, who had acquired him the previous day from Orlando, where Ridnour actually played last season.
(Before that, he split a season between Milwaukee and Charlotte, spent three years in Minnesota, clocked two seasons with the Bucks and started his career with five whole years in Seattle.)
The good news for Ridnour is there's still more than three months until the start of the 2015 season. Just think how many more teams he can sign with in that amount of time. Kind of blows the mind, doesn't it?