Arsenal’s pre-season tour of the USA came to a disappointing end in Philadelphia as the Gunners were beaten by Liverpool. The results of these pre-season friendly matches aren’t on any great consequence, but Mikel Arteta will still have wanted his side to beat the Reds. Arsenal were able to create chances, and dominate much of the game, but ultimately lacked cutting edge in the final third. Arteta has admitted Arsenal’s profligacy is a problem, and the Spanish coach is clearly trying to add firepower to his squad. Arsenal are pushing to sign Viktor Gyokeres, who ought to make the Gunners more …