Tsonga never does well in France or on the clay for that matter. Yet he bet Wawrinka. Let's be honest if a top player plays well and he's in the top 20, Murray's weakness on the clay usually is exposed. The depth in men's tennis right now is non existent. I won't be surprised if Nadal does a clay clean sweep
That is actually a sweeping judgment call. Wawrinka is pretty good on clay and slightly better than Andy on that surface. That, in fact, suggests depth not the other way. You are essentially contradicting yourself.
You can, however, say clay doesn't have much depth if Nadal does one more clay sweep. Overall depth would be another matter.