Neill Collins was in philosophical mood after Saturday's 3-1 defeat at Brentford.
Scoring United's equaliser at Griffin Park was scant consolation for the defender, after Will Grigg's second-half double consigned David Weir to his first league defeat as Blades boss.
Collins remarked: "I thought we did really well in the first 15 minutes of the second-half and deserved to get on terms, but sometimes you can't legislate for how quickly things change in football.
"In the end, the game finished in disappointment for us and ultimately we have lost the game by conceding two sloppy goals in the second-half.
"If we had stayed in the game for a bit long after the equaliser, I am sure we could have kicked on and taken something from the game.
"To give Brentford credit, they seized the advantage after scoring their second, but I am sure we will bounce back."