Read full articleYahoo Sport UKPremier League January transfer window: Club-by-club ins and outssam elliottTue, 2 Jan 2018, 8:52 amLink copied1 / 20January Transfer Window: Premier League ins and outArsenalIns: Henrikh Mkhitaryan (Manchester United, swap deal), Pierre-Emerick Aubameyang (Dortmund, £60m)Outs: Stephy Mavidid (Charlton, loan), Francis Coquelin (Valencia £12m), Tafari Moore (Wycombe loan), Theo Walcott (Everton, £20m), Alexis Sanchez (Manchester United swap deal), Ben Sheaf (Stevenage, loan), Marcus McGuane (Barcelona, undisc), Olivier Giroud (Chelsea, £18m) Premier League January transfer window: Club-by-club ins and outs