#4 Knee Injury
Luis Suarez has been facing a knee issue for two years or so. He has been struggling with his knee and has even been out of the squad for some games.
In December, he finished his biological treatment using stem cells to help resolve the issues with his right knee. However, Barça remains concerned by the state of his knee. The Uruguayan striker has been dealing with discomfort in his knee for some time now after playing a lot of matches season after season. He also receives a special treatment to ensure he doesn't suffer any major relapses. The stress over his knee is more concerning in regards to the medium and long term. Suarez's persistent problems mean he will need more and more treatment in order to keep him at peak fitness.
It looks clear, the striker is not completely fit despite getting the green light from the medical staff of Barcelona. Also, he does not have a proper substitute who can give him rest for some of the matches.