Real Madrid's Luka Modric (center L) and Marcelo Vieira (center R) attend a training session at Lillekula Statium in Tallinn, Estonia, Aug. 14, 2018. The UEFA Super Cup match between Real Madrid and Atletico Madrid will be held on Aug. 15 at Lillekula Statium in Tallinn, Estonia. (Xinhua/Sergei Stepanov)