Alexis Sánchez trained with his Arsenal teammates in full view of the cameras for the first time on Friday.
Sánchez joined the FA Cup winners for £35 million from Barcelona last month and remains the costliest acquisition made by a Premier League club this summer.
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The Chilean, who scored twice at the World Cup, is the Gunners' second most expensive signing after the £42.4m arrival of Mesut Özil last year.
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Sánchez could make his Arsenal bow in the Emirates Cup this weekend when they host Benfica on Saturday and Monaco on Sunday, with Valencia making up the four-team tournament.
The 25-year-old winger should then make his competitive debut at Wembley next week, when Arsenal face Manchester City in the Community Shield.