The Hamilton Tiger-Cats will have a number of new players at their disposal Friday against the Ottawa Redblacks, but won't have starting quarterback Zach Collaros.

Collaros did not practice with the team Monday, their first day of preparation for Friday's game, and is undergoing concussion protocol.

Jeremiah Masoli will start in Collaros' place. Masoli started the season behind centre for the Tiger-Cats while Collaros rehabbed a major knee injury suffered last year.

Collaros was injured in the Ticats' Week 13 loss to the Calgary Stampeders.