Paris Saint-Germain are trying to sign Kylian Mbappe on a loan deal before paying Monaco next summer to have the striker on permanent terms.
Mindful of financial fair play following the acquisition of Neymar in a £198million world-record transfer from Barcelona, the PSG proposal is to take Mbappe on loan with Lucas Moura going in the opposite direction for the current Ligue 1 season.
PSG also have interest in Mbappe's Monaco team-mate Fabinho but know they need to balance the books following Neymar's arrival.
Right-back Serge Aurier could join Tottenham before the window closes on August 31 while Barcelona may move for Angel Di Maria as they look to bolster their attacking options.