One of my partners is a grunter. She grunts on every shot. She is pretty loud as she hits, although her grunting does not continue after she makes her shot. She is also pretty darn aggressive with overheads, volleys, and finishing shots, which is one reason I like partnering with her. Well, she and I were playing a doubles match and we won the first set. As we took the lead in the second set, these ladies started complaining about the grunting. They said that it was unnerving to have my partner about to blast an overhead or other aggressive shot while she is also grunting loudly. They said they thought she was grunting specifically to intimidate when she was hitting aggressive shots. After we won, they threatened to file a grievance but ultimately did not. I have to mention that I also grunt. I do not grunt on every shot. I grunt on shots where I am trying to transfer my weight into the ball for a put-away, moments of extreme exertion, and reaction volleys. No one has complained. Still, I have played a whole lot of matches. I have never once noticed whether an opponent is grunting. It just doesn't bother me. Has an opponent's grunting ever bothered you? Did you say something, and did it help?