Mikel Arteta laid down a stern "pressure" warning to Viktor Gyokeres as the Arsenal boss claimed he isn't concerned by a six-game goal drought. The Swedish striker enjoyed a prolific spell at Sporting Lisbon, but is enduring a nightmare run in front of goal since his summer move to North London. Now, Arteta has made it clear that wearing Arsenal’s No.9 shirt comes with heavy expectations and an unrelenting level of pressure.