Militao also came off at half-time to be replaced by Antonio Rudiger.
Real Madrid found another name in the injury list. Los Blancos have been dealt a further injury blow following their Champions League tie with Celtic in midweek.
The European winners ran out 3-0 winners in Glasgow, but suffered the loss of striker Karim Benzema in the first half. The Frenchman is out for the next three weeks and he will be seen in action next month.
Now, Brazilian defender Eder Militao also picked up what has been described as a light muscle injury by Diario AS. Militao also came off at half-time to be replaced by Antonio Rudiger.
No time frame has been given for his return, but he is expected to be back in time for the Madrid derby, while resting for the matches against Mallorca this weekend and RB Leipzig in midweek.
With Rudiger available, Carlo Ancelotti has a straightforward replacement available to him, although it is far from ideal that Militao might not be at peak fitness against Atletico Madrid.