Beginning with today's clash with Chelsea, the Blades face four games in a 15-day spell that will decide whether they become the first team in the club's long history to qualify for European competition.
Chris Wilder's Blades are seventh ahead of the meeting with Frank Lampard's Chelsea, and trail sixth-placed Wolves by a single point. Chelsea, in third, are nine points ahead of the Blades.
United have consistently played two games a week since kicking off Project Restart at Aston Villa on June 17, and have experienced an unprecedented amount of injury problems since. Jack O'Connell and John Fleck, two of their most influential players, have both missed games, while McGoldrick himself was absent from Wednesday's 1-0 win over Wolves.
But the striker, who is expected to be fit to face Lampard's men, insisted: "A lot of us are used to it [the schedule] because we played in the lower leagues.
"This is a bit different, but we're not complaining. We've all been fighting all our lives to play in the Premier League, so no-one is going to complain about playing a couple of games a week.
"It's down to us now. We've got some tough games but no game is easy at this level. We're a match for anyone on our day and we're where we are on merit.
"We have to have belief and anything can happen."