Spanish giants Atletico Madrid announced on Thursday afternoon that Simao Sabrosa will be out of action for around three weeks.
The Portuguese winger twisted his right knee in Wednesday's 2-1 win away to Getafe, a result which leaves Atletico joint second with crosstown rivals Real Madrid.
Simao will miss the upcoming league matches against Sevilla and Barcelona, as well as the Champions League clash with Olympique Marseille.

The German car market is facing its worse downturn, the nation's auto industry association warned Wednesday as the deepening sense of economic gloom in the country leads to a shakeout in the industry and the prospects of big job cuts.
A comedy starring Vince Vaughn and Reese Witherspoon as a couple trying to avoid their families at Christmas debuted in first place over the weekend at North American box offices, according to preliminary studio estimates issued Sunday.