borussia dortmund striker pierre—emerick aubameyang has served a timely reminder why he is one of the ahead of the new season. he grabbed a double as the german side beat ac milan 3—1 in a high—profile pre—season friendly in china. here is austin halewood. after making ten signings already this summer, the new season means a new beginning for milan. tuesday was a chance to roadtest their new era against another of european football's biggest clubs. it was the germans who started the stronger. they scored from outside the box. a formerjuventus defender was added to the squad and his late signing meant he couldn't make it to china for the game and it looked like they missed him in defence. a foul and the box, penalty. pierre—emerick aubameyang scored 31 goals for dortmund last season, so there was no surprise when he was the man to double the lead. still within the first half—hour, a goal back for the italian side, to leave them one behind at the break. but into the second half, despite being linked with a move away from the club, aubameyang seemed to be enjoying his football and enjoyi