Manuel Neuer has been ruled out for Bayern Munich's trip to Schalke on Tuesday and could face a longer spell on the sidelines with a foot injury.
Peter Bosz revels in Borussia Dortmund's 5-0 thumping of Cologne following their UCL defeat to Tottenham.
Incident happened in the 83rd minute of a 2-2 draw when Keita's kick split Kramer's lip.
Muller scored the 97th Bundesliga goal of his career and provided his 97th assist on his 261st appearance in the 4-0 weekend win over Mainz.
Wolfsburg have dismissed coach Andries Jonker after just over six months in the job, with Martin Schmidt confirmed as his replacement.