How can i report 4 guys that went all afk at minute 10?

So i was playing a normal game and all my team mates went afk and letted me 1v5 for the rest of the game... I how like to report them how can u do it? (already done it on the end-game screen) Image: [REDACTED] ######Moderator note: Picture removed due to Naming and Shaming.
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