Ex-pro tells of his time in the NFL Mitchell Cole ignored heart condition for eight years due to love of soccer . Cole was diagnosed with heart problem aged 17 but only retired at 25 . Doctors told him chances of suffering cardiac arrest increased through sport .
Ex-pro tells CNN Fabrice Muamba 's collapse proves he was right to quit soccer . Mitchell Cole ignored heart condition for eight years due to love of soccer . Cole was diagnosed with heart problem aged 17 but only retired at 25 . Doctors told him chances of suffering cardiac arrest increased through sport .