my biggest weakness and most dreaded person to play against is an extreme top spinner with ball machine like consistency that has almost endless stamina. Not a normal pusher, but one who has so much topspin that each ball is at eye level unless you take it on the rise. He also has accuracy on his shots so there's a lot of running involved. his serves both first and second are huge top spin serves that don't have much pace but kicks like crazy. I am pretty good at taking it on the rise but it cuts my power a bit. After long ralleys I tend to go for winners and it's almost a 50/50 chance every point. I get gassed out and end up losing. what do I do?