So much has changed at the central England team since it was last among the elite six years ago, with Chinese ownership investing heavily and utilizing its business relationship with Cristiano Ronaldo's agent to attract players.
"I'm not confident, I'm not confident and the market closes today, so is time at least for me to stop thinking about the market because the market will be closed", Mourinho said.
Certainly, Spurs can not afford a repeat of the sluggish start that marred the opening weeks of last season if they are to challenge champions Manchester City and a Liverpool side that, by stark contrast, will feature £160 million of new signings this term. "I'm happy for them", Mourinho told Sky Sports.
"It's not just that we have to be more consistent, we have to create circumstances where we can be more consistent", the German added. According to data analysis website FiveThirtyEight, City has a 45-per-cent chance of winning the Premier League again this season.
Whatever the explanation, the lack of new faces compounds issues surrounding the United squad heading into the Premier League season.
After the United goal though it was mostly one-way traffic for the visiting side, with David De Gea repeatedly called into action including a miraculous save on a James Maddison shot that should have drawn Leicester level.
"They returned on Monday", he said.
That felt like a reference to Liverpool but, more importantly for United, it was also an admission that it will need a dramatic improvement this season for his own team to bridge the gap.
Wanderers, who won the Championship title last season, have strengthened their squad with eight new players over the summer.
"Premier League clubs' gross player transfer expenditure of £1.2 billion continues to demonstrate the sheer purchasing power of the most commercially successful football league in the world".
Ahead of Wolves' opening game against Everton at Molineux on Saturday, Nuno said: "We can not control expectations outside, it doesn't affect us".
"It was one of the things I wanted and last season I embraced it, we all embraced it".