United are sweeping all before them in the Premiership and in Europe and they have scored 20 goals in their last four home games. Berg feels this is testimony to the depth and quality of their strike force.
"We have so much quality in the team that it's very hard to defend against us," he said. "I think any team coming to Old Trafford will struggle because of the way we are playing offensively. With our strikers, Teddy Sheringham, Andy Cole and Ole Gunnar Solskjaer, it's hard for any team to combat them because of the form they are in.
"Then in midfield, we have Ryan Giggs, who is in tremendous form, Butt, Beckham and Scholes. With so much quality going forward, it's going to be very, very hard for any team to defend against that."
Blackburn tried to stop United by playing Chris Sutton as a lone striker and packing the midfield. However, that ploy did not work and neither did West Ham and Sheffield Wednesday's tactic of attacking United earlier in the season.
"Teams try different tactics against us," Berg said. "When West Ham came here they tried to attack, and it was the same with Sheffield Wednesday. You take a chance if you go out and attack us because if you don't score, then we are always likely to score.
"Blackburn, maybe, looked at that and thought we can't come here and attack because that's going to leave spaces for them to score. But when we play three strikers up front, and with Giggs and Beckham in midfield, it's still very hard to defend against us."
Berg admits United are even better than he thought they were before he joined them in his pounds 5m summer move from Blackburn. In particular, he is impressed by their professional attitude. "I knew they had quality, but I've found that it's not about individuals, it's about how they gel together and that's the main thing," he said.
"It's very rare to get that in a team and especially so early in a season. They are so mature in that when they win a game they don't celebrate. When we played away to Feyenoord and we won I was looking around the dressing room after the game.
"I thought it was a tremendous result because it had virtually put us through to the quarter-finals, but they were just sitting there as if it were just a normal game. I could not believe it, but they are used to success."
Berg's compatriot, Solskjaer, thinks his best form is yet to come after kick-starting his season against Blackburn yesterday. The 24-year-old Norwegian talent has scored five goals in as many starts and said: "I think I am improving day by day. I think I have improved from last year and I have learned more during the time I have been out injured.
"It would be nice to get my first hat-trick but two goals is enough to start with," Solskjaer, who has scored twice in each of his last two Premiership games, said.Reuse content