Manchester United secured top spot in Group A with 2-1 victory over CSKA Moscow at Old Trafford on Tuesday night.
Manager Jose Mourinho was delighted with side's performance, pinpointing the impressive return of left-back Luke Shaw.
The visitors went ahead through Vitinho on the stroke of half-time in a controversial manner. United defender Daley Blind slid off the pitch, which unbeknownst to everyone but the referee, kept Alan Dzagoev, who flicked the ball onto Vitinho, onside.
Speaking after the match, Mourinho said: "We confirmed out progression but in the way we wanted to. We played well and got the result. At half-time we were playing well and I was not unhappy. The boys played professionally .
"If I could choose goalscorers, I would always choose the strikers. Their confidence depends on that sometimes. Romelu Lukaku's work for the team every match is crazy. The goal was important for Marcus Rashford too.
"The first impression for the first goal was offside but then we saw it was not. The team showed the desire in the second half not by losing and going through, but to win.
"Shaw had waited for a long time, it is not easy to give an opportunity to a player in matches when we need results. I wanted to make changes, but Luke managed 90 minutes and I told him it is a opportunity to increase his levels."