Arsenal fans have been reacting to a frustrating game against Manchester City.
After a positive start which saw the likes of Eddie Nketiah threaten up front, the Gunners suffered a double injury blow inside the opening 20 minutes.
Firstly Granit Xhaka limped off and he was soon replaced by on-loan defender Pablo Mari.
But the moment that has angered many Arsenal fans came either side of half-time.
And David Luiz was involved - but for all the wrong reasons.
Failing to clear his lines as Kevin De Bruyne launched an ambitious ball into the penalty are, Raheem Sterling took full advantage and powered an effort past Bernd Leno to break the deadlock.
Then shortly after the restart he not only conceded a penalty - from which Kevin De Bruyne converted - but he also was giving his marching orders for the second time this season.
As expected, this prompted a huge response on social media.
The Brazilian is out of contract at the end of the month, and judging by the responses, many would be happy to see the former Chelsea defender leave.
Take a look at what's been said on Twitter...
Whilst some fans want Luiz gone, Gunners head coach Mikel Arteta is keen to keep him.
“I’m really happy with David,” Arteta said. “I want to keep him here with us.
“He’s been a key role model for me since I joined. I like what he produces on the pitch. I like his influence around the players and the club.
“I’d love to keep him."