I will be updating this post throughout the evening so check back often.
According to the Associated Press, Matthew will have a private workout with the Detroit Lions on March 31.
Here are some articles from Pro Day.
NFL.com: QB wows with strong, accurate arm
NFL.com: Stafford attracts a crowd at pro day
Detroit Free Press: Five Lions reps at UGA pro day
ESPN: Stafford's pro day take
Yahoo! Sports: Solid during pro day
MLive: Lions' GM Martin Mayhew attends pro day
The AJC, Scout, UGASports, has posted some photos from Pro Day.
Video from Pro Day:
NFL.com: Mike Mayock's report of Georgia's Pro Day
NFL.com: Mayock interviews Matthew
And some video from ESPN.