Police investigate after Tottenham player hit on head by bottle at Arsenal
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Police are investigating an incident that saw Tottenham's Dele Alli struck on the head by a plastic bottle during their 2-0 win at Arsenal on Wednesday.

The bottle was thrown from the crowd at Emirates Stadium during the Carabao Cup quarter-final.

England midfielder Alli, 22, was hit near the touchline as Arsenal prepared to take a throw-in in the 73rd minute.

The Metropolitan Police says it is working with Arsenal to try to identify the person responsible.

Arsenal have told BBC Sport they are examining CCTV to find the person who threw the bottle, but police say no arrests have been made.

The Football Association is aware of the incident and will support the police and clubs as they look into the matter.

Alli reacted with a 2-0 gesture to fans - referencing the scoreline at the time.

"In a different country, maybe they close the stadium for a few games," said Spurs manager Mauricio Pochettino.

"It's lucky it wasn't a big problem but I think people need to be careful, and we need to try and avoid this type of action. Some people behave very bad."

Alli had earlier scored the second goal and Spurs went on to reach the semi-finals with a 2-0 victory.

Wednesday's incident follows a banana skin being thrown towards Arsenal striker Pierre-Emerick Aubameyang in the Premier League match between the sides at the same venue on 2 December.

The Spurs fan responsible was fined and banned from football for four years on Tuesday.

BBC Radio 5 live pundit Dion Dublin, who was co-commentating on the game, said: "It's sad to see. It's mindless. Why would you do that?

"It must have had water or something in it to reach Dele Alli. Why would you risk being idiots?

"Just support your club, don't do ridiculous things like that."

When asked about the incident after the game, Alli told Sky Sports: "It is what it is. It made the goal a bit sweeter and the win."

An EFL spokesperson told BBC Sport the matter would be up to the Football Association to investigate, but they would "assist" if required.