Mourinho, though, was keen to praise his players for a result that closed the gap at the top of the table to five points ahead of Manchester City's meeting with West Ham at the Etihad Stadium on Sunday.
Speaking about the 24-year-old, he said: "He played well". I believe the game, it has to make us angry and even more determined.
"He is very frustrated because everybody knows that Paul is a clean player and it was not his intention at all to be close to a red card".
Future team-mates at Manchester United?
Danny Welbeck and Alexandre Lacazette, appealed in vain for penalties and, with his tongue firmly in his cheek, Mourinho said: "I know the pitch is awesome and maybe breeds a desire to go to the floor".
"If I am a player, and I think with what we produced we have a huge potential, and we lose the game, we can not accept that".
In a post-match huddle which also included Jose Mourinho, Thierry Henry and William Gallas, he gestured that it may have been Bellerin's unusual attempt to tackle that was to blame.
United face neighbours City in the Manchester derby at Old Trafford next weekend and are their great rivals' only realistic challengers. And we put ourselves in a very hard position. "What I saw was the best goalkeeper in the world".
Man United's mercurial talisman Paul Pogba may have strayed into that risky territory this weekend when speaking to BBC Football Focus about City's players.
Arsenal boss Arsene Wenger said De Gea was "absolutely outstanding".
"We have produced an excellent performance but have conceded three goals and had at least 10 chances and were not efficient enough in the box, that is the reality".
While you're here, check out the latest episode of #SportsJOElive where we had former Irish Rugby star Andrew Trimble alongside Down footballer Chrissy McKaigue and extreme adventurer Gavan Hennigan on the couch!"I thought the lads dug deep, especially in the first half when we were under pressure", added Lingard.
- Belarus PM off to Sochi for SCO Heads of Government Council meeting
- Netflix gives two-season order to Sabrina adaptation
- Germany's SPD denies agreeing coalition talks with Angela Merkel
- Ole Miss receives punishment for NCAA violations
- Joe Scarborough: Trump Has Dementia, His Allies Told Me
- Arrest made in Mariah Woods disappearance; missing girl believed to be deceased
- Jimbo Fisher departs FSU for Texas A&M job
- Chinese actress Liu Yifei to play Hua Mulan
- Google Datally Android app gives fine-grained mobile data control
- A suspicious package unleashes the alert in a Christmas market in Potsdam