Some remarkable stories do the rounds during a transfer window. Indeed, anyone who spends all day searching for transfer news about their club will know that no story is too strange at this time of year. Over the past few days, a number of rumours about Arsenal have done the rounds on social media, and one story seems to have captured the imagination more than any other. Rumours on social media have suggested that Arsenal are interested in a so-called ‘mystery’ German player, and according to Arsenal insider, Team News and Ticks, speaking on Inside Arsenal, this rumour is true. Indeed, the ins…