Union Berlin are finalizing the loan signing of U.S. national team midfielder Brenden Aaronson from Leeds United, sources involved in the deal tell The Athletic. Sources have been granted anonymity as they’re not authorised to discuss the move publicly. Union Berlin finished fourth in the Bundesliga last season to qualify for the Champions League for the first time. Aaronson has been expected to leave Leeds this summer following the club’s relegation from the Premier League. Several English and other German clubs were interested. Aaronson, 22, joined Leeds last summer for around...