Kahn: Elbow surgery
Oliver Kahn is to undergo surgery on his elbow injury and is facing up to five weeks on the sidelines.
The veteran Bayern Munich goalkeeper aggravated an existing problem during the warm-up for Saturday's Bundesliga clash against Bayer Leverkusen.
Kahn was replaced by Michael Rensing for the BayArena meeting and he kept a clean sheet as the visitors won 1-0 to open up a four-point lead over Schalke at the top of the table.
Coach Ottmar Hitzfeld confirmed that the former Germany No.1 requires an operation, but as yet a date is still to be set for the procedure.
Bayern could also be without Miroslav Klose for Thursday's Uefa Cup first round second leg with Portuguese outfit Belenenses due to a knee complaint.
Bayern Munich's #1 goalkeeper Oliver Kahn striker Miroslav Klose have been ruled out of Thursday's UEFA Cup 1st Round 2nd Leg match against Portugal's Belenenses. Lukas Podolski has been ruled available after an injury scare. Kahn and Klose join Philipp Lahm, Willy Sagnol, José Ernesto Sosa and Valérien Ismael.

Oliver Kahn will require elbow surgery and will be out for five weeks.

Bastian Schweinsteiger, Marcell Jansen and Luca Toni didn't practice today for precautionary reasons.

Michael Rensing will replace Oliver Kahn in net while it's not known what formation Ottmar Hitzfeld will use on Thursday.