Staying interested in a match is a lot harder than many people think. Throughout my career, I've always had trouble in the early rounds of a tournament mainly because it was hard for me to psychologically get up until I got to the quarters or the semis. What happened a lot of times is that I would fall behind early, maybe even lose the first couple of sets in a five-set match and then begin to concentrate. Still it wasn't something I could control from the start.