Manchester United are closing in on the £70million purchase of Borussia Dortmund striker Pierre-Emerick Aubameyang this summer. Executive vice-chairman Ed Woodward revealed this week to United shareholders that the club has cash reserves of £121.6m and indicated there will be 'star signings' in the summer. Despite the speculation surrounding manager Louis van Gaal, work on signings continues . - See more at: http://www.dailymail.co.uk/sport/fo...rtmund-striker-Pierre-Emerick-Aubameyang.html