CHELSEA fans loved Conor Gallagher's "priceless" reaction to Enzo Fernandez's stunning free-kick against Aston Villa.
The Blues produced a much-improved display to beat Unai Emery's side 3-1 away from home.
Mauricio Pochettino's men booked their place in the FA Cup fifth round courtesy of goals by Gallagher, Nicolas Jackson and Fernandez.
The Blues' third strike came via a sumptuous free-kick.
Villa stars contested the awarding of the set piece, believing that little contact had actually been made on Fernandez.
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Nevertheless, the Argentine dusted himself down and produced a moment of stunning quality.
The 23-year-old curled the ball right into the top corner, wheeling away with his shirt off in a flash to celebrate.
From the reverse replay of the free-kick, fans spotted Gallagher's stunned response.
The midfielder, 24, had been stood by the Aston Villa wall, making a nuisance of himself.
When the ball hit the back of the net he turned towards Fernandez with his mouth agape in complete wonder.
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Spotting his response, one fan wrote on social media: "Conor Gallagher's reaction to Enzo's freekick is priceless!"
While a second gushed: "Absolutely love this!!!"
A third swooned: "Man was in awe."
And a fourth admitted: "That’s my reaction too."
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Another added: "Gallagher was class today as well."
Under-fire Pochettino was thrilled with his side's display.
Asked by ITV if it that was his side's best performance of the season, the 51-year-old said: "'I think so.
"We were talking in the dressing room about the feelings with the players. One of the best, maybe the best performance of the season.
"it has arrived in a very good moment for us and I'm so happy with the performance.
"The way we played pleased me the most. We are a young team and you know always it's about being solid and consistent and that is the most difficult thing in a young team."
Pochettino then urged his side to emulate pundit Roy Keane, who was at the game for ITV.
He added: "We are a young team and Roy, you know very well that it's about being solid and consistent and that’s the most difficult thing in a young team.
"We need a bigger mentality, sometimes the mentality of this guy [points at Keane], but it’s about finding a balance.
"For me I am so optimistic, I know at a club like Chelsea people aren’t patient and they don’t want to know about the circumstances but the reality is another thing, we’re not the Chelsea that was competing in a different time."
