Atletico Madrid trail Bayer Leverkusen 1-0 after first-leg defeat in Argentina . Spanish champions host second leg at Vicente Calderon on Tuesday . Diego Simeone thinks the return of Koke could be key for his team .
Atletico Madrid trail Bayer Leverkusen 1-0 after first-leg defeat in Germany . Spanish champions host second leg at Vicente Calderon on Tuesday . Diego Simeone thinks the return of Koke could be key for his team .