Manchester United manager Ole Gunnar Solskjaer knew this week would be a significant one for him and his players, and the first of two tough matches has been navigated successfully.
United found themselves in trouble against Atalanta, trailing 2-0 at half-time in their must-win Champions League encounter, but second-half goals from Marcus Rashford, Harry Maguire and Cristiano Ronaldo turned the game around.
Next up is another massive test, with the visit of Liverpool to Old Trafford on Sunday, and Solskjaer's interview after Wednesday night's match seemed to betray his concerns ahead of the game.
While the nature of the comeback against Atalanta brought plenty of reasons to be positive, the Norwegian seemed aware of the size of the task ahead as his team welcomes the league's only unbeaten side.
During a post-match interview with beIN SPORTS , Solskjaer was asked whether the comeback against Atalanta would give his side confidence going into Sunday's game.
He let out a big sigh and his answer, when it came, was relatively non-committal as he opted to focus on his squad's quality without going overboard on the confidence issue specifically.
"Confidence is a strange thing," the manager said.
"Desire, determination... we're still as determined every single game when we go into a game.
"They know they're good players, that doesn't disappear overnight, but a result and a performance like the second half is obviously going to give us a boost before a massive game on Sunday."
Liverpool have been almost unstoppable this season, and their victory over Atletico Madrid on Tuesday moved them onto nine points in their Champions League group.
Jurgen Klopp's side are also yet to lose in the league, with their 5-0 victory at Watford last weekend extending an unbeaten run which stretches all the way back to March.
That run also included a win at Old Trafford in May, so if Solskjaer is worried about Sunday's game it is not without cause.
Manchester United go into the game sitting sixth in the Premier League, following a run of two defeats and a draw in their last three league matches.
Liverpool are four points ahead of their opponents in second, with five wins and three draws from their eight league games this term.
United's next game after Liverpool sees them take on Tottenham Hotspur at the end of October, followed by a trip to Bergamo for their return match against Atalanta.
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