Mainz - Locked together on nine points, the fruit of an unbeaten first five games of the Bundesliga season, 1. FSV Mainz 05 and TSG 1899 Hoffenheim head into their Friday-night clash at the Coface Arena (kick-off 18:30 GMT/20:30 CEST) both looking to preserve that proud record.
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Mainz: Karius - Brosinski, Bungert, Bell, Junior Diaz - Geis, Baumgartlinger - Allagui, Djuricic, Hofmann - Okazaki
Hoffenheim: Baumann - Rudy, Süle, Strobl, Beck - Polanski, Vestergaard - Volland, Roberto Firmino, Elyounoussi - Modeste