“A clean sheet is pleasing because it's not an easy place to come,” he told Sky Sports.
“We didn't get many chances as we would have liked and we're disappointed not to win the game.
"Hopefully it's a good point come the end of the season. I just don't think we were good enough with our movements or final ball.
"United are a confident team and well organised. There's a long way to go.
Liverpool went back to the top of the Premier League table (Image: GETTY)
Roberto Firmino went off with an injury at Old Trafford (Image: GETTY)
"We have to look where we can improve when we have got the ball."
United lost Ander Herrera to injury after only 21 minutes and Jesse Lingard was then forced to replace Juan Mata just four minutes later.
The England international has been suffering with his own problems and only lasted until two minutes before half-time before coming off in place of Alexis Sanchez.
Liverpool had to deal with problems of their own, with Roberto Firmino forced off after half an hour as the game struggled to recover from the constant disruptions.
Invalid email
We use your sign-up to provide content in ways you've consented to and to improve our understanding of you. This may include adverts from us and 3rd parties based on our understanding. You can unsubscribe at any time. Read our Privacy Policy
Jurgen Klopp said it was a strange game (Image: GETTY)
The visitors managed only one shot on target in the entire game and the games’ best chance fell to Lingered who was spectacularly denied by Alisson on the hosts’ goal.
"It was a strange game,” Reds boss Jurgen Klopp said.
“We started really well. All the injuries in the game obviously cost us rhythm. It happened to us with Bobby and that was a catastrophe.
"United played with a completely new midfield and three up front. We lost our rhythm and couldn't get it back.”