The Scoundrel Worlds: Star Risk: Book Two by Chris Bunch
Skyball is popular, challenging, and violent. In other words, the greatest sport in the universe. The mercenary team of Star Risk, Ltd. has been hired to watch it ... closely. Two opposing worlds are neck and neck, and lately the game's been a real killer. Riots, murder, a real madhouse for loyal fans. It's up to Star Risk to keep it galaxy-friendly. Good luck to them. They don't stand a sporting chance.