Arsenal have managed another emphatic win, this time against Watford, this week and it was pretty enjoyable to watch, but what did we learn?

2Mustafi can literally do anything

Arsenal’s German defender Shkodran Mustafi (C) celebrates with Arsenal’s Gabonese striker Pierre-Emerick Aubameyang (L) and Arsenal’s Egyptian midfielder Mohamed Elneny (R) after scoring the opening goal of the English Premier League football match between Arsenal and Watford at the Emirates Stadium in London on March 11, 2018. (BEN STANSALL/AFP/Getty Images)

Anyone who has push notifications turned on for Arsenal’s official Twitter account will have seen that they accidentally tweeted out an update around 20 minutes ahead of kick off claiming that Mustafi had already picked up a red card.

Obviously, they deleted it and then had to clarify that this actually hadn’t happened – the tweet had been a mistake.

As it happens though, Mustafi had a pretty eventful game, scoring a header (assisted by Ozil) in the first half to put Arsenal 1-0 ahead, making some big tackles throughout the match, and picking up a yellow card in the second half.

The Watford win is a prime example of how brilliant Mustafi is when he’s ‘on’. Often, the centre-back can be a little sloppy, slow and disappointing, which is pretty annoying considering Arsenal spent £35m on him in 2016. However, he was solid against the Hornets and showed what he’s made of.

How many players can get a red card before kick off and then score during that very same match?

Arsenal still absolutely need one or two new, experienced defenders in the summer, if only because Gabriel hasn’t really been replaced, Per Mertesacker is retiring and Laurent Koscielny’s Achilles is on its last legs.

But if Mustafi can consistently perform well and show the grit, as well as skill, he needs to be a first choice centre-back, then all the better.