Sport Kei Nishikori Returns to Action at Mubadala DC Open by Javier Moreno - Sports Editor July 28, 2026 by Javier Moreno - Sports Editor July 28, 2026 Kei Nishikori returned to hard-court competition at the Mubadala DC Open, marking another step in his ongoing comeback from a series of injuries that derailed his career after climbing to … 0 FacebookTwitterPinterestEmail