Arsenal star Thomas Partey has been absent for the majority of the season, and Mikel Arteta has now revealed that his specific tactical plans for him have been derailed. Partey will now miss the African Cup Of Nations with injury, and has made just five appearances all season. After starting in midfield against Manchester City in the Community Shield, Arteta sprung a surprise as Partey played as an inverted right-back in the opening few games of the Premier League season. The Ghanaian then picked up an injury, before briefly returning to help beat Man City off the bench in October, but has not…