BERLIN : Borussia Dortmund will only be focusing on Sunday's game against third-placed Mainz 05 and not waste any thought on the Bundesliga's eight remaining matches, coach Niko Kovac said on Friday, with Champions League qualification in the balance. Dortmund, who take on Barcelona in their Champions League quarter-final next month, have struggled in the Bundesliga and are 11th on 35 points, ten off fourth place, the last automatic Champions League qualification spot, with eight league games