For years, I have been trying to convince my students to avoid sitting. Sitting too much before, during, and after training and tournaments will kill your body. Think about it...
1. Players often is for 3-4 hours driving to a tournament
2. Players immediately sit down between matches for extended periods of time
3. As soon as the tournament is finished, players immediately sit back in the car and drive another 3-4 hours
4. Players wake up the next day and rest by sitting for 10 hours in front of the TV