Spanish giants FC Barcelona have strengthened with four sbo666 signings in this transfer window, but seven of their stars could still leave by the end of this month, including a player the Catalans spent £105 million (R1.7 billion) on.The Blaugrana have signed Arturo Vidal, Malcom, Arthur and Clement Lenglet in this window, while a few other players have returned to the club from loan spells.Although they have already let a few stars leave, Barca may be looking to get rid of a few more players, especially considering that they are rumoured to be interested in Manchester United's Paul Pogba, who would not move for a small fee.Sergi Samper is one of those players who could be on his way out of the club in this transfer window, with the player himself admitting that if he does leave Barca, it might be for good. The 23-year-old has been loaned out twice in recent years, most recently to Las Palmas.Centre-back Marlon, 22, could also find himself headed for the exit doors before the close of the month after returning from a loan spell at Nice last season. With limited non-EU spots available, Marlon is likely to be left out of Ernesto Valverde's plans for this campaign.According to Barca Blaugranes, the club is sbo666 flirting with the idea of either selling or loaning out Denis Suarez in this window, while striker Paco Alcacer could also be on his way out before September arrives.Brazilian midfielder Rafinha and young attacker Munir El Haddadi could also be gone by the end of August, and the same could apply to winger Ousmane Dembele, who joined the Catalans for a massive fee of £105 million last season.If Barca are to make any more high-profile signings in this window, it has been reported that the young Frenchman could be sent out on loan with an option to buy.A few Premier League clubs were believed to be interested in sbo666 his signature, but with the English window having closed last week, Paris Saint-Germain could be a possible option.