Sterling was sat down in the canteen when Gomez arrived and leant over from behind to shake his hand, leading him to attempt to grab his team-mate by the neck. The rest of the England players initially thought Sterling was joking, but it soon became clear that he had lost control and the pair were separated.

https://soccer.nbcsports.com/2019/11/11/sterling-sent-home-from-england-camp-after-gomez-bust-up/