Arsenal boss Arsene Wenger is delighted with their swoop for Legia Warsaw midfielder Krystian Bielik.
Wenger has confirmed the signing of Bielik, pending a successful medical. Bielik arrived in London on Friday to complete his move.
Wenger insists the fee for the 17-year-old is less than the £2m that has been touted - but admitted it was a hefty sum to fork out for one so young.
"It's an awful lot of money for a player if he doesn't succeed," said Wenger. "If he does succeed then it's cheap. He's a defensive midfielder, 6ft 2in, he has a good energy level and technical level. It's a gamble. But on what we saw it's worth to take the gamble. He will go straight into the first-team squad."