Complex sentence: After suffering from different injuries of which the latest involved a meniscus operation, Janssen on 4 March 2014 announced that he would immediately end his active football career and that he would pursue a career with Vitesse as a scout for youth players and specialist trainer.
Split into simpler sentences: After suffering from different injuries of which the latest involved a meniscus operation, Theo Janssen decided on March the 4th 2014 that he immediately ends his active football career. He pursues a career with Vitesse as a scout for youth players and specialist trainer.