Manchester United bounced back from their surprising loss at Newcastle last weekend by advancing to the quarter-finals of the FA Cup.

Having lost at Huddersfield Town earlier this season, Jose Mourinho's men didn't make the same mistake on Saturday evening as they recorded a 2-0 victory.

Man Utd took control inside three minutes thanks to a very well-taken goal from Romelu Lukaku, who looked back to his best, and his second goal was arguably even better.

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From a Huddersfield corner, the Belgian played a one-two with Alexis Sanchez before powering his way past opposition defenders and doubling United's lead ten minutes after the interval.

Having scored in front of a packed away end, it's safe to say that the Man United players enjoyed Lukaku's second goal, but during the celebrations, Alexis did something pretty classy.

Man Utd back on track

Ahead of Wednesday's Champions League trip to Sevilla, the Red Devils needed a clean sheet and Lukaku back on the scoresheet - and that's exactly what they got.

While Sanchez, who arrived in a swap deal from Arsenal involving Henrikh Mkhitaryan last month, didn't score, he provided an assist, many good moments and worked tirelessly for the team.

Alexis' classy gesture

After United's second goal, several of their fans burst past the stewards and out of the terraces to invade the pitch and join in the celebrations with their heroes.

As players and supporters embraced, Alexis made one young boy's day, hugging and picking him up before carrying him for a few seconds in what must've been a dream embrace for the kid.

Check out the lovely images below:

Man United fans react

Plenty of Man United fans spotted Sanchez's moment of class and loved it, taking to Twitter to praise the 29-year-old forward - here is some of the best reaction:

Whatever you think about Chile's all-time leading scorer, most football fans can agree that this was a lovely gesture and something the young United fan will remember for the rest of his life.

Sanchez seems to have struck up a good understanding with Lukaku and will hope to continue that when Sevilla host Mourinho's side in the Champions League Round of 16 first-leg.

What do YOU make of what Alexis did during Man Utd's second goal celebrations at Huddersfield? Leave YOUR opinion in the comments box below!