Uefa has opened a formal investigation into Paris St‑Germain as part of its "ongoing monitoring" of clubs under Financial Fair Play regulations.
European football's governing body introduced Financial Fair Play 'break‑even' rules in 2013, requiring clubs to balance their spending with their revenue.
PSG more than doubled the world record transfer fee when they spent 200 million pounds to sign Neymar last month.
They have signed Kylian Mbappe on loan, and could pay 165.7 million pounds for him in 2018.
Source: BBC
