Let's define "sandbagging" so that we all know what we are talking about. Here is here the most common definition used by USTA League players: "Sandbaggers are any USTA players that beat the guys on my team. Sandbaggers always play on another team, never on my team. If my team gets beat, there must have been something unfair about the competiton _ obviously sandbagging. If my team gets beat badly, that is proof enough that the other team was out of level. If my team loses a close match, the other team (sandbaggers) were keeping it close. If my team wins a line or two, it was because the sandbaggers intentionally played to lose. AND I HAVE SUPER POWERS THAT ALLOW ME TO KNOW WHEN OPPONENTS ARE NOT TRYING"