Borussia Dortmund return to Bundesliga action on Saturday full of confidence after starting their Champions League campaign with an impressive display.
A 2-0 victory over Arsenal at Signal Iduna Park suggested that Jurgen Klopp's side were fully prepared to deal with the injury problems which have hit the club, and also that Dortmund were close to hitting top form.
After leaving a couple of key players on the bench for last weekend's win over Freiburg, Klopp is expected to name a team which looks more similar to the one which enjoyed great success over the Gunners.
Mats Hummels is rumoured to be closing in on a return to the centre of defence, but his comeback could be put off for slightly longer.
Mainz will be confident of providing a tough test for the title challengers after recording their first Bundesliga win of the season by beating Hertha Berlin 3-1 last Saturday.
Mainz 05: DDW
Borussia Dortmund: LWW
Possible starting lineups
Mainz 05: Karius, Bungert, Brosinski, Diaz, Bell, Koo, Baumgartlinger, Moritz, Geis, Allagui, Okazaki
Borussia Dortmund: Weidenfeller, Durm, Sokratis, Subotic, Schmelzer, Bender, Kehl, Groskreutz, Aubameyang, Kagawa, Immobile
Sports Mole says: 1-3