Guardiola's old rival Jose Mourinho hasn't been shy about raiding the United coffers, with the Lukaku swoop headlining a £140 million spree that also brought Benfica defender Victor Lindelof and Chelsea midfielder Nemanja Matic to Old Trafford.
He said: "In many ways, it is my team".
The Hammers did not improve the squad like Everton did in terms of names.
"It's the way I trust the player is going to perform so I think it's a fantastic signing for us".
The Belgium worldwide, 24, scored nine goals in his first nine appearances against West Ham for former team Everton before the east London club finally kept him at bay in a 0-0 draw last April. In the cups we never lost, and in the Europa League, we never lost, so for the whole season, we lost one match.
Defense wins titles, but goals are what the people want.
"I'm going to fight for them".
"We have a good squad - a good squad also in numbers".
United have three remaining players on the treatment table with Luke Shaw, Marcos Rojo and Ashley Young all continuing their recoveries from serious injuries sustained last season. "We needed to do that because four or five players were out of contract".
The Premier League kicks off a new season tonight with millionaire players entertaining the more modestly paid fans packed into stadiums and on TVs.
His first season at United was a year of building - and now he is ready to get to the top again.
Fuelled by an historically lavish spending spree, the English Premier League returns this weekend in a hotly-anticipated new season. "I'm on fire", he exclaimed before vowing: "But I will behave on the touchline!"
Manchester United and Tottenham, who both play on Sunday, inspire less confidence.
He said: "When I joined Man United a year ago, I thought we needed a kind of Matic".
"There are not many, there are just a couple".
Real Madrid are set to play manchester United tonight in the Super Cup, and Mourinho believes that if Bale plays it is a statement of intent that the Spanish giants aim to hold onto him. I know all of that and I understand your question.
"If he plays, it is the clearest signal that he is staying there", said Mourinho ahead of the huge game. As you know the Premier League is the main target'.
"He's one of those players who gives me what I like in a player, which is consistency".
"I think what will be crucial will be their home form". A £40 million fee proved too much for Blues owner Roman Abramovich to turn down, even if manager Antonio Conte wanted to retain the midfielder. That is normal but not enough, ' he stresses.
One man who would like to see Ibrahimovic back at Old Trafford is Daley Blind.
"I mean he's been questioned about scoring in the big games, but that was a big problem for United past year, beating teams at home, teams they should beat, so I think he'll help with that".
"They are very different".