Jose Mourinho was not happy with his side's performance against Crystal Palace on Saturday.
Manchester United's poor season continued as they laboured to a 0-0 draw at Old Trafford.
And the Portuguese manager said after the game that he thinks that his players lacked heart.
"You must play with brain and also with heart and I think not enough heart," he said, per BBC.
"We didn't have that intensity that in my opinion is basically related with your brain, with your heart. There are games that are special games and not just one more, and this was a special game.
"It was the first of eight Premier League games until the end of December and a game we needed to win, and it was not enough from the heart."
Watch the interview below:
As a whole, United's team didn't show enough desire to emerge victorious.
However, there are a few exceptions.
Victor Lindelof played through injury and heroically made a tackle to stop a Palace attack late on in the game.
And, Marcus Rashford showed late on in the game that Mourinho should have exempted him from that criticism.
With the game just 19 minutes to run, Palace had a dangerous free-kick on the right hand side.
After being headed away by a red shirt, Rashford then sprinted out his box and completed not one, but two sliding tackles.
The ball then found its way to Alexis Sanchez, who made sure all of Rashford's good work counted for nothing as he passed the ball straight out of play.
That is top quality from Rashford, though. It's no wonder the Old Trafford crowd got on their feet and cheered when the youngster went flying into these two challenges.
In a game where, on the whole, United's players showed a lack of fight and determination, Rashford kept going right until the last moments.
United weren't able to capitalise from his efforts, but that is the sort of attitude needed for him to grow into a world class player in the future.