Manchester United defender Chris Smalling admits Watford had them nervous in the final moments of Saturday's win.
Smalling struck before halftime for the 2-1 win at Vicarage Road.
He told MUTV: “Getting two wins on the bounce and coming into a month where there are so many games, I think we are building momentum at the right time.
“We knew that Watford had confidence and we knew that if we didn't get the third goal the last 10 minutes would be how it played out but we all dug in and knew we needed to win.
“When they pulled one back it was a bit against the run of play. But then after that, I think it was about digging deep.
“We knew we'd be deeper than we wanted to be, they chucked on another striker and it was a bit of clock-watching in the last 10 minutes, I'm not going to lie."