And when a less gifted team goes into the Emirates and plays Arsenal straight up, they're bound to get spanked.
While there were cheers for Welbeck, Alexis Sanchez faced jeers from some of his own fans after the Chile forward's failed bid to join Manchester City in the summer transfer window that closed on August 31.
Arsene Wenger has refuted claims that Alexis Sanchez is unfit and insists the Chilean star is focused on Arsenal's Premier League campaign.
The ex-Werder Bremen man managed eight goals and nine assists in 33 Premier League appearances last season but is yet to make an attacking contribution this term. We had a convincing performance against a team who had a very good game against Manchester City.
Danny Welbeck has finally scored a few times in an English Premier League match for Arsenal.
It wasn't a particularly high-tempo game but Arsenal were most certainly in charge in the early stages.
Some of the players have been celebrating on social media after Arsenal got back to winning ways with a comfortable 3-0 win over Bournemouth this afternoon. "Sometimes people say "he does this, he does that" but I think in a way, he is a guy who plays with all his passion and all his heart".
He's only the second Arsenal player to score in his first two home games after Marouane Chamakh - although that's where the comparisons between those two end. "We have to perform in every single game, but your opponents are in the same position, and sometimes they get on top". "The interpretation of the attitude is always very unsafe", Wenger added. The record signing fired a precise right-footed curler into the net that gave Begovic no chance as the former Lyon man showed great technique and composure. Despite all the uncertainty, Sanchez remains an Arsenal player, as does his teammate Ozil, and that should be reason for optimism for the Arsenal faithful.