With the summer transfer window officially closed, several Premier League clubs have improved their squad, but I think Manchester United have done the best business in this window.

Replacing Van Gaal with Jose Mourinho, United brought in a top quality manager making their intentions clear that they are here to dominate the Premier League.

A big club like Manchester United needs big players who can win them games. And Jose has done exactly that with his summer signings. The Portuguese boss made four major signings as he promised, with Eric Bailly, Henrikh Mkhitaryan, Zlatan Ibrahimovic and Paul Pogba.

A major boost for the Red Devils, that most analysts and pundits aren't talking about is, David de Gea has stayed at Old Trafford. Its definitely a big news and shows our power to not just buy big name players but to retain them as well.

With Manchester derby coming up next, and the squad that we have now, there's definitely a lot for Man United fans to be excited about.

Jose Mourinho has been appointed as the new Manchester United manager, leading the Red Devils from the 2016/17 season. He has signed a 3-year contract with an option to stay at Old Trafford until at least 2020.

Ed Woodward said: "José is quite simply the best manager in the game today. He has won trophies and inspired players in countries across Europe and, of course, he knows the Premier League very well, having won three titles here. I’d like to take this opportunity to welcome him to Manchester United. His track record of success is ideal to take the club forward."

José Mourinho said: "To become Manchester United manager is a special honour in the game. It is a club known and admired throughout the world. There is a mystique and a romance about it which no other club can match."

Matteo Darmian has joined Manchester United from Italian side Torino. The established Italy international joins on a four-year contract with the option to extend for a further year.

Reckoned to be one of Europe’s most dynamic full-backs, Matteo Darmian really caught the eye at the 2014 World Cup finals in Brazil. He's 25 and has made 146 appearances and scored 5 league goals for Torino since his debut in 2011; as well as representing Italy 13 times.

After joining Manchester United, Matteo Darmian said:

It is a dream come true to be joining Manchester United. I have loved the time that I have spent at Torino and I would like to thank the club and the fans for everything they have done for me.  I am sure they can understand when the opportunity to join the biggest club in world came along it was something I had to do. To work with Louis van Gaal, a manager that has achieved so much in football is such an exciting prospect.

United boss, Louis van Gaal said:

Matteo is a right-sided full back with the versatility of also being able to play on the left. He is a strong defender and has the ability to go forward in the attacking positions which is a fantastic attribute to have and much needed in the fast rhythm of the Premier League. Matteo will be a great addition to the team. I am delighted to welcome Matteo to the club and look forward to working with him in the coming days.

Welcome to Manchester United, Matteo Darmian!

Memphis Depay has finally completed his dream move to Manchester United by signing a four-year contract, with an option for an extra year.

The Dutchman arrives from PSV Eindhoven and in his first interview after putting on the red shirt, Depay hailed Van Gaal the world's best boss. He said,

This is a dream come true for me; to play for the biggest club in the world and also to have the chance to work with someone who I believe is the best manager in the world, Louis van Gaal. I have great belief in my ability and I work hard to strive to achieve my dreams. I have been at PSV Eindhoven since I was 12 years old and I would like to thank them for everything. It was a great moment when we won the league and I was so happy to be part of that. This is now a new chapter in my life and one that I am looking forward to.

At the same time, United boss, Louis Van Gaal heaped praise on Memphis Depay, saying he has arrived at a huge club. He said,

I know Memphis well from our time working together in the Netherlands national team. He is a young versatile player who has the ability to play in a number of different positions. It will take time for Memphis to get used to the rhythm of the Premier League but I have no doubt that he has the potential to become a great footballer for this club and he is at the right club to continue the good work he has done so far.

Welcome to Manchester United, Mehmphis Depay!

Manchester United new signing Victor Valdes may be handed his debut by Louis van Gaal against Cambridge United on Friday in the FA Cup fourth-round tie at the Abbey Stadium.

Valdes, the former Barcelona goalkeeper signed an 18-month contract at Old Trafford this month and he has been used as a substitute since then.

The Spanish stopper has has not played competitive football since sustaining a cruciate knee ligament injury while playing for Barcelona against Celta Viga in March last year.

After spending three months completing his rehabilitation at Old Trafford, the Red Devils offered him a contract.

LVG wants to get Valdes ready for the Premier League, should United's #1 David De Gea leave for Real Madrid. Plus, out-of-favour goalkeepers Anders Lindegaard and Ben Amos look set to leave United as well.

Do you think Louis van Gaal will start Victor Valdes against Cambridge United? Tell me below!

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