No England player should ever be booed when they are wearing the shirt. It's about dusting yourself [off] and just moving on.
The Tottenham Hotspur star has now scored 31 goals for England, which sees him climb to sixth place in the nation's all-time top goalscorers list, despite having only 44 worldwide caps to his name.
Sterling, 24, accepted responsibility for the incident but Gomez was booed when he came on in the second half. While the rivalry in England has not reached that level yet, Southgate is going to need to be aware of it and try to keep the unity that has been a symbol for this England team.
Manchester United legend Wayne Rooney now occupies the top spot with 53 goals, ahead of 1966 FIFA World Cup victor Sir Bobby Charlton, who netted 49 times for the Three Lions.
Joe Gomez has been ruled out of England's Euro 2020 qualifer against Kosovo in Pristina on Sunday after a training ground collision with Kieran Trippier, who was playing on the same team as him, to set the seal on a nightmarish week.
His maiden goal for his country completes a memorable 2019 for the 22-year-old after winning promotion to the Premier League with Aston Villa and scoring 11 goals in 18 games for Chelsea this season. Just believing! The sky's the limit.
'I don't remember Euro 96, I wasn't born, but hopefully we can make it a great occasion.
Goals from Alex Oxlade-Chamberlain, Marcus Rashford, an own goal from Aleksandar Sofranac, and a first senior goal for Tammy Abraham completed the rout on a night.
"To be on the same pitch with him, training with him every day, watching learning off him, it's always nice to have that type of player to learn from. That was the main thing, coming into the game we knew we needed a point, but a win was on our mind and we knew coming to Wembley for the 1000th game we could put on a big show and I thought we did that".
"So, it will be a good test for us because it will still be a lively environment".