I went to the first round of the NCAA tennis tournament yesterday in Knoxville, Tennessee. Aside from getting to watch Tennessee throttle Winthrop and ETSU upset Alabama in the first round, I also learned something new about the college game. I had no idea that they played net cord "lets" on the serve. I knew I was hearing serves hit the net all day long and that the play continued, but figured I was mistaken. Finally, I had to ask someone there if I was seeing that right. Sure enough. Are there any other rules that are significantly different for college tennis (men's div I) than for regular tennis?