Okay - that's not a bad strategy on the face of it. But depending on the quality of the ball being returned, it could leave open a pretty wide range of possibilities to cover. Especially in pro tennis. Not very likely. Read on... Here's the meat of what I am saying. If Lisa is able to return a blocked shot into the tramlines by Paes off a good, wide serve from Moodie, I claim she has the area covered. This is not a 20 mph floater, but a pro quality block, maybe 40 to 50 MPH. But if Paes hit a 100 MPH screamer, she wouldn't have a chance. Thus, the term "coverage" to me is a matter of degree.