On 14 April 2012, while representing Livorno, Morosini suffered cardiac arrest and fell to the ground in the 31st minute of the Serie B match away to Pescara. He stumbled on the ground, trying to get up, before losing consciousness and receiving medical attention on the field. A defibrillator was used on Morosini, who was conscious when he was taken on the stretcher. According to the news agency ANSA, a city police car was blocking the stadium’s exit for the ambulance for nearly a minute, but a heart specialist said that the delay made no difference. After Morosini was taken to the hospital, the match was abandoned with Livorno leading 2–0, and some players reportedly “left the field in tears”. Morosini was rushed to the Santo Spirito hospital, but reports later indicated he died before reaching the hospital.Italian media reports were alerted of Morosini’s death after an “explosion of shouts and tears” by his teammates who had gone to the hospital. All of the Italian football league matches for the weekend were suspended. Livorno and Vicenza then decided they would retire the number 25, the number Morosini wore whilst their player. Morosini’s death came four weeks after Fabrice Muamba suffered a cardiac arrest in an English FA Cup match, after which awareness of heart risk had been raised in Italian football.