I didnt catch it the first time, but Nadal went up to the net for the handshake, and Rosol stood up after lying down, and he threw his racquet at the net.
At 8:00 to 8:08
http://www.youtube.com/watch?v=m8X1h84-Ogk
At 8:00 to 8:08
http://www.youtube.com/watch?v=m8X1h84-Ogk