How to block ingame pings?

Just now I played a match with two very toxic players in my team, kept flaming and spouting insults, so I blocked(edit, blocked as in muted) them. One of them must have realized that they were blocked, and kept spamming me with pings ALL THE TIME. So freaking annoying to constantly hear "Dangert danger danger danger" , with a few seconds pause now and then when they reached the spam limit, and then they began again with the "danger danger danger danger", over and over. This was an Emerald player, so no bronze newbie.

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Is there a way to mute ingame pings? I can't find it if it's possible.