Arsenal have signed defender Rob Holding from Bolton Wanderers for a fee believed to be about £2m.
The 20-year-old, who has agreed to a long-term deal, made 30 appearances during his first senior campaign in 2015-16 and won the club's player of the season award.
"It's something you dream of as a kid," he told the club website.
The former Trotters youth player was in the England Under-21 squad that won the Toulon tournament this summer.
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