How to mute an annoying player who keeps pinging in League of Legends?

I can mute a player's chat by clicking on the speaker icon in the score board. Though I will still get his/her pings.

How can I mute the player's pings too?

Solution 1:

With patch 7.10 Riot has introduced an option to mute player pings.

The new ping-mute button axes standard pings, smart pings, and the newer HUD pings. The old mute-chat button is still there, and still mutes chat as well as extracurricular animations (/d) and emotes (ctrl+6).

You can find the ping-mute button on the in-game scoreboard right next to the old mute button.

Solution 2:

As far as I remember, you can't mute pings.

Solution 3:

Unfortunately they haven't implemented a way for you to cancel out the pings in game.

I believe this was due to them not wanting people to miss out on important information that comes with them (Eventually they will get a cooldown on their pings when spammed)

You can adjust the volume for these pings however in your options>Sound However that will effect every player in the game.

This has been a requested feature from a fair number of players however I believe they might be hesitant to include it.