The issue was that he would progress, attempt more rigourous exertion, reach a limit and regress. Wait, progress, exert, regress (rinse and repeat). It was taking months of false hope and then failure, false hope and then failure... The Club medical staff were managing this quite closely and as Pau has stated, IDG wanted to get well and play again. Mentally, they (Club and Drs) needed him to reach the conclusion it was over.