Phoenix couldn't close out Memphis in Monday's 108-104 road loss on Martin Luther Day after having not played in a week.
Down four and without any timeouts, Mikal Bridges made the first free throw with 3.3 seconds left, but missed the second one in hopes Phoenix would get an extra possession to tie the game with a 3.
Xavier Tillman denied the Suns that opportunity by grabbing the defensive rebound. Fouled with 1.5 seconds left, the rookie out of Michigan State split two free throws to secure the win for Memphis.
Deandre Ayton led Phoenix (7-5) with 18 points and 16 rebounds while Bridges added 17.