There's sure to be a lot of debate about this one.
Ulster were in action in Edinburgh this evening, coming away with a priceless win against the odds, beating the Scottish side 20-17 at Murrayfield.
Tries for Darren Cave and Ruan Pienaar got the Ulstermen over the line, but they were reduced to 14 men with 20 minutes to go when Stuart McCloskey was red carded for a tip-tackle on Edinburgh's Hamish Watson.
And they were reduced to 13 men for the final six minutes, after Franco Van Der Merwe saw yellow for consistent infringement.
The red card was controversial, but by the letter of the law, McCloskey turned Watson over the horizontal and didn't bring him safely to the ground.
Despite this, it still left plenty of Ulster fans furious on Twitter.
Judge for yourself.
