Ignore clan option

Maybe we could have this option to ignore the clans that continually send mismatches .This would be very handy in that you wouldnt have to keep putting up with these challenges.You could just set your option.
The same principle as ignore players.

I don't think this is necessary. After all you can just delete challenges. And you should know the offending clans.

Plus you could notify the other clan leader that you won't consider further matches.