Diogo Dalot admits two Manchester United players gave the team 'headaches' last season but it won't be repeated.
Dalot was a regular last season as United went trophyless and recorded their lowest league finish for more than 50 years.
In response, Ruben Amorim has been busy in the market, signing Matheus Cunha from Wolves and Bryan Mbeumo from Brentford, who both caused United issues last season, while the club are also set to ramp up a move for RB Leipzig striker Benjamin Sesko.
Cunha scored directly from a corner in a 2-0 win over Amorim's side last season, embarrassingly just a week after Son Heung-min did the same for Spurs in a Carabao Cup tie.
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Although Mbeumo did not get on the scoresheet in United's 4-3 defeat at the G Tech, he impressed throughout the season for Brentford.
Dalot was asked about the summer additions on CBS Sports Golazo.
He said: "I'm very happy that they are on our side now because every time we go into play against them, they always give us big headaches.
"Obviously they don't need to prove anything in terms of trying to adapt to the country, they know the league too well.
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"They play a lot of years in the Premier League so now they just have to come to a big club and try to put us back where this club should be and help us to get there."
Cunha has featured in both of United's two pre-season friendlies so far against Leeds and Newcastle United.
Mbeumo is still working his way up to match fitness after he took part in individual fitness work rather than team training for the first week of Brentford's pre-season.
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Dalot said both players have settled in well as the team prepare for the opening league game against Arsenal in two weeks.
He said: "I think they are two big characters, two very humble people, which is what we need - people that want to get better every day.
"They adapted really well to the group, I think it was straight away that you could feel that good energy and the club felt it."
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Cunha and Mbeumo are expected to come straight into the starting 11 but there is a lot of competition for the number 10 positions.
Mason Mount, Amad, Bruno Fernandes and even Toby Collyer have all been tested there during pre-season, although the latter is expected to leave on loan.
The club hope Cunha and Mbeumo will inject goals into United's attack and fire them up the table.
Last term, Cunha scored 15 league goals, while Mbeumo hit 20 for the first time.
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Amorim is still keen to add a centre forward, with Sesko emerging as the top target.
But they will face competition for his signature from Newcastle United, who are bracing for Alexander Isak's potential departure to Liverpool.
Topics: Manchester United, Diogo Dalot, Premier League, Football, Ruben Amorim, Man Utd
James Taylor