Head coach Jim Schwartz has said that Matthew will begin the game against the Cleveland Browns this Saturday. Schwartz doesn't like to use the word "start" since he doesn't think the team has any starters yet.
DetNews - Lions' Matthew Stafford will start vs. Browns
MLive.com - Matthew Stafford, Louis Delmas will start for Lions on Saturday
FreeP.com - Stafford will start 2nd exhibition for Lions