Manchester United legend Wayne Rooney has issued a warning to Viktor Gyokeres after his subdued Arsenal debut. Gyokeres struggled to make an impact in Arsenal’s Premier League opener at Old Trafford on Sunday and was replaced in the second half by Kai Havertz.

Speaking to Sports Mole, Watts claimed that Arsenal's fellow attackers did Gyokeres no favours with their runs inside, but he also implored the Scandinavian to quickly adjust to life in the Premier League, where he cannot "bully" defences in the same way that he did in the Primeira Liga.

New Arsenal striker Viktor Gyokeres struggled to make an impact in his first game for the Gunners but his new side were still able to come away with three points against Manchester United