Brenden Aaronson has taken to social media after the Leeds United loanee scored his first goal for Union Berlin in their win over Hoffenheim. Brenden Aaronson has struggled to show what Leeds are missing during his time in Germany. His decision to join Union Berlin was understandable considering that they could offer Champions League football. However, it has been a miserable season for Union. They failed to win any of their group-stage games in Europe. And they have been involved in a relegation scrap in the Bundesliga. Brenden Aaronson reacts after scoring first Union Berlin goalThey have no…