 Key players of this Olympiacos team that was crowned European Champion for the second time in the club's history were Josip Pavić, Giannis Fountoulis, Andro Bušlje, Konstantinos Genidounias, Manolis Mylonakis, Paulo Obradović, Konstantinos Mourikis, Vangelis Delakas, Giorgos Dervisis, Alexandros Gounas, Stelios Argyropoulos and Dimitris Nikolaidis.Under Vlachos, Olympiacos have also reached the final of the 2015–16 LEN Champions League in Budapest, where they lost 6–4 to VK Jug, and the final of the 2018–19 LEN Champions League in Hannover, where they lost in the penalty shootout to Ferencváros.Overall, from the 2006–07 through the 2019–20 season, Olympiacos domestically won 12 Doubles (Greek Championship and Greek Cup) in 14 seasons, five of them straight (2007–2011), and six more undefeated and having won every game (without even a single draw) in both the Greek League and the Greek Cup (2008–09, 2009–10, 2013–14, 2014–15, 2015–16, 2017–18).