Manchester United beat Watford 2-1 at Old Trafford.
Goals from Marcus Rashford and Anthony Martial secured all three points on Ole Gunnar Solskjaer’s first game as permanent manager.
United bounced back after losses to Arsenal and Wolves in the Premier League and FA Cup respectively.
However, Shaw admitted that United were not at their best against Javi Gracia’s Hornets.
Speaking after the match, Shaw said: “We made it harder with the way we played,”
“There were times when we weren’t at our best.
“We were awful in the second half, we were lucky with the result. The most important thing is the three points.
“We had a few chances but we didn’t take them. We need to get ourselves together again and focus on Wolves. We want to go there and get the win.