Manchester United ended the transfer window with Daniel James, Aaron Wan-Bissaka and Harry Maguire as their new signings, with fees totalling above the £140 million mark.
The Red Devils also had Romelu Lukaku leave the club on deadline day for in a £73 million deal that saw the Belgian join Inter Milan.
But former United striker Louis Saha believes the club missed a trick with not signing Tottenham's Toby Alderweireld.
Speaking to Bwin, Saha commented on the lack of approach and was left confused.
"Why United didn't trigger Alderweireld's release clause is a complete mystery to me," the ex-striker said.
"He's been excellent for Tottenham and would have instantly strengthened United's defence."
United have been linked with Alderweireld for a few windows now, and when his £25 million release clause became active it was expected they would make a move.
"When you look at the money United have spent on defenders this summer, they could have got themselves an absolute bargain who still has a lot of years of football to play,
"United clearly made Maguire the main target, but the pair could have been a real force together."
READ MORE...
Predicted! FourFourTwo’s 2019/20 Premier League table
Quiz! How many of the 40 biggest Premier League summer transfer deadline day deals can you name?
‘It was without a doubt one of the most important matches that I played in my career. It wasn’t just Champions League football – it was a whole club at stake’: Ex-Chelsea star opens up on key game which changed the Blues' fortunes forever
'I was Arsenal captain and really enjoyed it, but when Man City come calling, you have to listen': England international reveals reason for swapping London with Manchester
