Andre has written about Pete’s bad tipping habits in his book and from the looks of it Pete wasn’t to thrilled by his comments. Prior to a serve he decides to do a little impression of the old man and his famous pigeon-toed walk. Andre didn’t take to kindly to it and dives right into the poor tipping situation all over again. What follows is a very awkward “conversation” between the two of them and also includes a cheap shot by Pete. Keep in mind, this is all a a charity event. If you were wondering, Sampras won the match.