Arsenal manager Mikel Arteta says the online abuse of striker Kai Havertz and his wife has "terrible consequences" and needs to be "eradicated from the game".
Havertz was criticised for his performance in Sunday's FA Cup defeat by Manchester United, after he missed a glorious chance to win the game in normal time and then had his penalty saved in the shootout as United won 5-3 on penalties following the 1-1 draw.
The German's wife Sophia shared screenshots of the "shocking" abuse she received on social media amid the game, including threats to the couple's unborn child.