​Manchester United's Portuguese manager Jose Mourinho says he had absolutely no hope of Chelsea agreeing to let Nemanja Matic sign for the Red Devils.

The Serbian international joined his former manager at Chelsea in a £40m deal last month and is already looking like one of the best signings of the summer as he was named man of the match in United's stellar performance in their 4-0 win against West Ham yesterday.

Although the 29-year-old didn't score, he played a vital part in United's first goal of the campaign. Matic showed strength against Pedro Obiang in midfield and laid the ball off to Marcus Rashford who then used Matic's intelligent dummy run to set up Lukaku for the opening goal.

From the defensive midfield standpoint, Matic made two tackles, won four aerial battles and had a pass conversion ratio of 86%. Manager Jose Mourinho praised the Serb as he confessed he still can't believe Chelsea sold Matic to Manchester United.

The Portuguese tactician said in his interview via ​Evening Standard, "It depends on what was happening behind doors, of course with Chelsea, (they have) the money, but I know that I brought him to Stamford Bridge because I thought he was a player with special qualities and since I left I always felt he could be a perfect player for us."

Mourinho went on to conclude that he was adamant not to make any advances for the Serbian midfielder as he was a Chelsea player and disclosed how the deal happened. 

He said, "But I didn’t disturb him, or Chelsea. I didn’t think it was possible unless something special was happening, and it looks like something was happening because his agent said we could have him, we would just have to pay.”

On the flip-side of this transfer, stands a distraught Antonio Conte who has confessed that he is not happy with the club's decision to see Matic.