It was also a good day for Leicester City, who, not only managed to keep hold of Harry Maguire amid reported interest from United, but also brought in the well-regarded young defender Caglar Soyuncu from Freiburg, tied Jamie Vardy down to a new deal and signed Croatia Under-21 global Filip Benkovic.
"I'm not confident", Mourinho said, when asked whether there would be more players arriving before the deadline.
United have endured a hard summer transfer window as they have tried and failed to sign a host of defensive targets, with Tottenham centre-back Toby Alderweireld and Leicester's Harry Maguire among the names on their wish-list. "I'm not confident and the market closes today so it is time, at least for me, to stop thinking about the market because the market will be closed, so I will have to focus on the players I have".
Najib pleads not guilty to money laundering
The new government reopened the investigations stifled under Najib's rule and barred him and his wife from leaving the country. On Tuesday, a luxury yacht that was allegedly procured using stolen money from 1MDB was returned to the Malaysian government.
Mourinho revealed he will be without six senior players for the game against Leicester.
"My view is that first of all is hard for me to believe we finished second", he added. It is hard for me to understand we finish second.
Mourinho heads into the Leicester match with a hefty injury list, including key midfielders Nemanja Matic and Ander Herrera, while a host of other stars of only recently returned from their break after World Cup duty.
Marcus Rashford, Phil Jones, Victor Lindelof and Romelu Lukaku made slightly early returns so could be involved on Friday, perhaps helping to boost the mood of a manager who has looked downbeat for much of the summer. In football you need time to work and players on the pitch to work and we didn't have that until now. I don't think they can challenge on both fronts with the way they play, unless they adapt and they change: the way they play at 100 miles an hour from the first minute to the last minute, it's very hard to do that Saturday-Wednesday-Saturday-Wednesday.