Mute pre-game lobby function

Hello, I would like to see a feature implemented to allow me to mute my team in the pre-game lobby. It gets irritating being a top main and everyone picks their champs and nobody says anything then its your turn and everyone screams to pick a tank and they start talking about the 3 main tanks in the game (lcs picks: shen, nautilus, maokai) and how I need to pick one or we lose. Naturally I'm still going to pick who i think is best and/or who I want to play with every intention to win regardless of their incessant screaming about who to pick, but it slightly tilts me before the game even begins and there's no reason for my teammates to think I'm some primal ape in the game lobby who doesn't know what a well rounded comp is nor should they think I'm picking a weird or non-tank champ into a match up that I'm unsure about or have little experience with.

Please add this function!