The Spaniard was once again in good form for The Gunners.
They won 3-0 yesterday thanks to a superb start to the game. Arsenal were 3-0 up within 20 minutes after two goals from Alexis Sanchez and a Mesut Ozil finish in between.
There were a number of top performances in the game from Arsenal players. Gabriel and Per Mertesacker were excellent at the back whilst Theo Walcott and both goalscorers were deadly going forward.
But once again it was the performance of Hector Bellerin that really caught the eye.
Up against a top quality side such as United the young Spaniard once again justified the reasoning behind keeping him in the Arsenal team ahead of French international Mathieu Debuchy.
Going forward he was once again a huge threat. His pace exposed the inexperience of Ashley Young in the left-back position and his link up play with the attackers was truly terrific.
It was a great performance from the lad and one that once again impressed Arsenal fans.
Here is how some of the Arsenal fans reacted on Twitter…
THE MATURITY BELLERIN HAS SHOWN IS OUT OF THIS WORLD FOR SOMEONE OF HIS AGE #AFC— Ahmed Hussein (@elitegooner) October 4, 2015
Bellerin and Walcott are our most consistent big game players— Budgey (@AFC_Budge) October 4, 2015
AFC are a big club and one that are always close to a mini crisis. Given this pressure can't praise 20yo Bellerin enough for his consistency— Liam (@LiamHaydn) October 4, 2015
@piersmorgan Don't forget Bellerin making sure the new Ronaldo was subbed at HT— Ibrahim (@ibb_AFC) October 4, 2015
Monreal + Bellerin = 2 complete suprise packages of the past 18 months. #AFC— James Keane (@Keano_AFC) October 4, 2015
@afc_budge Hector Bellerin is going to be an Arsenal legend mate, if Barcelona don't snatch him back.— Noah (@EsNoah_) October 4, 2015
Bellerin is that guy mehn, so in love with that dude. #Afc— Abiodun Adelakun (@Herbaylee) October 4, 2015
If you're an Arsenal fan and don't name your first born Bellerin, deactivate.— Jordan Cutts (@JCutts_afc) October 4, 2015
Bellerin is amazing by the way.— SamW (@SamW_AFC) October 4, 2015