Ruben Amorim will know what to expect when he comes up against Viktor Gyokeres in Sunday's Premier League opener between Man United and Arsenal, but he has already revealed the striker's biggest weakness.
Gyokeres, 27, moved to the Gunners from Sporting Lisbon for a fee rising to £64million last month after a lengthy transfer saga throughout the summer.
The Swedish striker, who was also linked to United, is set to play in the Premier League for the first time after previously representing Brighton, Swansea and Coventry in English football.