Posted it on his thread in Other Football but he's technically on-loan so it's worth mentioning that Malen has scored 5 goals in his first 5 league games for Roma - first player to do that since Batistuta in 2000.
Fabrizio Romano says the loan fee was €2m and the obligation to buy is €25m in the summer. Roma qualifying for Europe (non-Conference cos it pays blose), and Malen appearing in 50% of the games from Jan to May triggers it.
He also says that we've retained a 10% sell-on clause.