As the famous Thai boxer had once said, the loneliest sport is boxing. But Bob believes he meant fighting in general. In most sports, you compete with people who do the same thing as you, you are just trying to decide who does it better or faster, such as running and swimming . Or, you are on a team, trying to score a goal for the team, such as soccer, basketball
What about tennis? Ping pong? Sports that just involved with going back and forth with your opponent?
Bob still thinks fighting is the loneliest, because there is nothing in between you and your opponent. No net. No ball. No lines. Just beating and punching. Direct emotional stress and scare. Direct physical harm. A lot of boxers get concussion.
Bob, or real name is Robert B. Smith, has been fighting, experiencing the most loneliest process. Actually, worse than that. He has been fighting alone. So it has been double the loneliness. He is also always alone.