Ok so it was a long time ago...he is Russian and safins age and played with him and was actually ranked higher as junior in russia. Things I noticed: The ball gets to you very fast and you have to eliminate all non essential movement of your racquet in order to be ready to hit. He hit funky angles with pace like returning a deep bh shot wickedly short cross court. never saw that one before. also notice i was wrong footed a lot. l'm not sure why. just found myself being jammed more often than I can remember. Also it felt like I played three hours eventhough we only hit for one. The main lesson in not to get freaked out yes the ball comes fast and hard but when i stayed calm we actually had some decent points.