Complex sentence: After Álvaro, a former soccer player for teams such as Getafe CF and Real Madrid, suffered a serious injury, he began to play guitar and compose songs during his rehabilitation period, and finally left football and created a group, known as PIG NOISE.
Split into simpler sentences: After Álvaro, a former soccer player for teams such as Getafe CF and Real Madrid, suffered a serious injury. He began to play guitar and compose songs during his rehabilitation period, and finally left football and created a group, known as PIG NOISE.