I play in a round robins league for the County. Anyhow, my partner and I are both seniors. Our opponents were about 30 and 35 years old. They played smartly and kept hitting high deep balls which kept the person playing back working hard. The net person could not reach any of those high balls to put away. After losing the first set 7-5, we were tired. But they continued with their playing style. And we went on to lose 6-1. We or I honestly believed if we could play the same in the 2nd set we could pull out a win. What was I thinking? Was there anything we could have done under the circumstances to win (taking age and endurance into consideration)? We play by USTA rules.