Things didn't quite click at first for Jose Mourinho and Manchester United, but the Red Devils are certainly rolling now.

Time and time again last season, Mourinho's men went in goal-less at halftime - particularly at Old Trafford - and United were accused of being boring and rigid.

Not this term. United have blitzed their opponents so far and with 21 goals in seven games and four of those came against a hapless Crystal Palace on Saturday.

The Eagles have lost all of their seven games this season and have yet to score, so the last thing they needed was to face an unbeaten, high-flying United away from home.

Romelu Lukaku has been one of the major differences to Mourinho's side with 11 goals in his first 10 games as a United player.

However, speaking after the game, the Special One named the four players he counts on the most to make United tick, and Lukaku wasn't one of them.

"I need good players, I need good people," Mourinho said. "I need some people with maturity, I need some people with the concept of team, I know that the new generations are more individual because this is the way the entourage and society makes them.

"So to have people like Mata, Herrera, Valencia, Matic, to have people like them - and I am just giving a few examples, I could give more - is very important because managers, we don't have an easy life now."

Mata is a very interesting choice since Mourinho actually sold him to United when he was Chelsea boss, but the Spaniard has performed consistently for the red half of Manchester, including scoring against Palace last time out.

Mourinho also worked with Matic during his stints as Chelsea boss and Valencia has been one of the best right-backs in the Premier League over the last two years, but Herrera might be a surprising choice.

The former Athletic Bilbao man fell out of favour with Mourinho earlier this season and has only just found his way back onto the pitch. Mourinho was reportedly upset that Herrera invited a friend to United's training ground with close ties to Celta Vigo ahead of their tie with the same club in the Europa League.