I too saw this the other day and right away it screamed photoshopped...sure when you fold your arms they usually appear bigger, but there is no way he has a chest that massive. Andy's built more solid below the waist. His arms are not that big and neither is his chest. Notice how there are not any "fitness" pics of him inside? Very obvious its been altered.
The cover is a joke. If Andy were really that much of a musclehead he wouldn't be a top tennis player. Too much bulk would slow him down and he wouldn't be as flexible, either.
To compare, here's a pic of the real, unphotoshopped version of Andy.
"What kind of shape am I in now? Well round is a shape." said Roddick with a laugh. "I had a very detailed retirement plan, and I feel like I've met every aspect of it: a lot of golf, a lot of carbs, a lot of fried food, and some booze, occasionally — I've been completely committed ... The results have shown."