AC Milan chief Adriano Galliani is reportedly furious Sulley Muntari allowed himself to get injured while on holidays.
The 27-year-old Ghanaian joined the Serie A giants on loan from Inter during the January transfer window and impressed during the second half of the season.
Indeed, Milan were ready to offer Muntari a two-year contract worth three million euros per season.
However, the player suffered anterior cruciate ligament damage while enjoying a kick-about with friends on the beach and was forced to undergo surgery on Tuesday, thus ruling him out of action for five months.
Milan, who were plagued by injuries last season, were forced to sign Kevin Constant on loan from Genoa as a replacement and, according to Corriere dello Sport, Galliani is enraged by the unexpected but essential extra expenditure.
Consequently, the paper claims the contract offer on the table for Muntari will be 1.3 million euros less than the previously agreed figure.
The former Portsmouth man, whose contract with Inter will expire at the end of the month, made 13 appearances for Milan last season, scoring three goals.