Annunen is slated to start Thursday's road game against Washington, Alex Daugherty of The Tennessean reports.
Annunen is poised to get the second half of Nashville's back-to-back after Juuse Saros starts at home against the Wild on Wednesday. Annunen has made five appearances since the start of the calendar year, going 2-1-1 with a 2.87 GAA and .907 save percentage.