1. FSV Mainz 05 coach Martin Schmidt and his TSG 1899 Hoffenheim counterpart Julian Nagelsmann are both weighing up their options as they seek their first win of the season on Matchday 2.
Two of the most renowned tactical tinkerers in the league, expect Schmidt and Nagelsmann to make changes from the teams they sent into battle a fortnight ago when they meet this Sunday (kick-off 17:30CEST/15:30GMT).
Mainz possible line-up: Lössl - Donati, Bell, Balogun, Brosinski - Frei, Rodriguez - Clemens, Malli, de Blasis - Cordoba
Absentees: Berggreen (knee), Curci (calf), Samperio (knee), Zimling (cruciate ligament), Latza (adductor), Ramalho (muscular)
Head coach: Martin Schmidt
Hoffenheim possible line-up: Baumann - Toljan, Schär, Süle, Ochs - Schwegler, Rudy, Rupp - Uth, Kramaric, Wagner
Head coach: Julian Nagelsmann