Sure, here is a more detailed paraphrasing of the text:The 24-year-old player, who recently joined the team in a deal worth £33 million last month, scored the first goal for his side by slotting the ball home from inside the area after receiving a pass from Rodrigo De Paul.

Antoine Griezmann then doubled their lead after half-time.

Later, Julian Alvarez also scored his first goal for Atletico since his summer move from Manchester City.

The Argentine striker, who had not found the net in his first four appearances for the club, managed to scramble the ball in from close range during stoppage time.

Gallagher became the 12th player from England to score a La Liga goal and the first to do so for Atletico Madrid.

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Goal! Atletico Madrid 3, Valencia 0.

Julián Alvarez (Atletico Madrid) scored with a left-footed shot from the left side of the six-yard box to the center of the goal following a fast break.

An attempt was saved when Thierry Correia (Valencia) took a right-footed shot from the right side of the box, which was saved in the bottom right corner, assisted by Germán Valera.

Another attempt was blocked when Germán Valera (Valencia) took a left-footed shot from outside the box, assisted by Martín Tejón.

An attempt was missed when Sergi Canós (Valencia) took a right-footed shot from a difficult angle on the left, which was close but missed to the left, assisted by Pepelu following a set-piece situation.