Arsenal manager Mikel Arteta has addressed the club’s need to sign a striker in the January transfer window after their 2-0 defeat to Liverpool yesterday. The Gunners’ FA Cup campaign for the 2023/24 season came to an abrupt end last night thanks to an own goal from Jakub Kiwior and Luis Diaz’s last-minute strike. Speaking after the game, via the club’s official website, Mikel Arteta refused to blame their lack of firepower for the defeat. Arsenal once again controlled vast periods of the match yesterday and should have been three or four goals to the good in the first 20 minutes. There were a…