Another Belgian, Michy Batshuayi, was the hero for Chelsea, scoring on the last kick of the game for the Blues in their 2-1 win at Atletico Madrid.
Batshuayi, who will on Monday turn 24, the same age as Lukaku, isn't the proven talent like his countryman, picked up by United from Everton over the summer. Batshuayi played 20 games in his first season after his transfer from Marseille but only started one game. He is still a part-time player this season in the EPL, but he now has goals in both UCL games.
“Michy is a young player,” Chelsea manager Antonio Conte said. “Last season he struggled a lot to understand the league. He is improving, and his commitment is very good. He has a lot of room for improvement. He has to continue this way."
The hottest Englishman in the Champions League is Tottenham's Harry Kane. He scored twice in Spurs' opening game, a 3-1 win over Borussia Dortmund at Wembley, and followed that up with a perfect hat trick -- one goal with his right, one with his left, one with his head -- in Tottenham's 3-0 win at Apoel Nicosia.
Spurs manager Mauricio Pochettino went so far as to say he was in love with Kane, who has scored nine goals in eight games this season for Tottenham.
"Now my wife is so jealous," Pochettino said, "and his wife, too. No, I think it's unbelievable. You know, it's Harry Kane. He has unbelievable skills in front of goal. He has something special. That is why he is one of the best. All the strikers that have this type of level they have something special in front of goals. They are killers. Harry has this special skill.''
Manchester City also remained perfect with a 2-0 win over Shakhtar Donetsk, though it could and probably should have been more. Sergio Aguero had a penalty saved, thwarting his bid to become City's all-time leading scorer. Tied for first in the EPL with United, City went into the game having scored 22 in its previous five games.
Manchester City, Manchester United, Chelsea and Tottenham also happen to be the top four teams in the EPL, with combined records of 25 wins, five ties and only two losses between them in the EPL and Champions League.
EPL and UCL combined:
7-1-0 Man. City
7-1-0 Man. United
Liverpool, fifth behind Spurs on goal difference in EPL, is the only team that has struggled in the Champions League, tying Spartak Moscow, 1-1, on Tuesday for its second straight draw. It would be a shock, though, if the Reds didn't advance out of their group that also includes Sevilla, the group leader, and Maribor of Slovenia.