Start Cook and Mattison?

Assuming Cook plays, do I start Mattison in my flex over Lindsay or Michel? Worried about Cook leaving because of injury or if they blow out Detroit.

i dont expect a blow out its a divisional game ( coming from a vikings fan) i think our defense will keep us ahead and there will be no reason to keep cook out there but i still think cook will have a good game and he says he is playing just keep an eye on the practices this week and make your decision sunday I think Lindsay is a safer play than mattison unless cook is ruled out then mattison will shred