Matt Mervis broke out with three home runs this past week. It’s Monday, which means it’s time to check in on the Boys of Fall playing with the Mesa Solar Sox. As a quick reminder, the Mesa Solar Sox are the Cubs’ affiliate in the Arizona Fall League and they play their home games at Sloan Park, the Spring Training home of the Cubs. They share the team with prospects from the Athletics, Marlins, Rays and Yankees this year. In case you missed the introduction or last week’s recap, you can read them at those links. I’ll also let you…