"We needed to do that this summer because it was one of the oldest teams in Europe, not just the Premier League".
Lukaku scored a consolation goal as United lost 2-1 to Real Madrid in the UEFA Super Cup in the Macedonian capital Skopje on Tuesday and his team-mates have been impressed by what they have seen in pre-season. He is a key player in midfield. "Manchester City are many pundits" favourites for the title this year.
Asked if he plans to play three at the back regularly, Pep said: "I'm not going to say we are going to play all the season in that system".
However, after failing to reach an agreement with Inter Milan for long-term target Ivan Perisic, the United manager is yet again contemplating the Welsh international's arrival to Manchester.
"It's not like going into the unknown; but it will be a tough, challenging season, and they need to make sure they're up for it".
Crystal Palace were crowned the punter's champions thanks to late season victories over Arsenal and at Liverpool.
Herrera says United simply came up short against the "best team in the world" - a philosophical stance that echoed his manager's post-match thoughts.
SHIRT SLEEVE SPONSORSThe upcoming campaign will see Premier League clubs allowed shirt-sleeve sponsors for the very first time, although only the right sleeves will be used.
"Some of the transfer fees are insane but it shows how good these players are".
City open up their Premier League campaign with a trip to the south coast to face newly-promoted Brighton in their first ever top-flight fixture.
United did not finish lower than third in the Premier League era under Sir Alex Ferguson, but since his retirement have ended seventh, fourth, fifth and sixth.
"I'm happy with the effort the club made and happy the club managed to do 75 per cent of the work before the Premier League starts".
"It would be better to lose two or three matches but win three or four more matches, and then we would have six to eight more points".
"We are discussing the possibility of him to stay with us".
"I'm sure they will do fantastic this season".
Head coach Antonio Conte on Friday said there was "no news" on Costa and responded "I don't know" when asked when the striker might return to London.
Yet, a team featuring Sergio Aguero and Gabriel Jesus up front and a sprinkle of attacking midfielders like Kevin De Bruyne, David Silva, new signing Bernardo Silva, Leroy Sane and Raheem Sterling promises lots of goals this season.