Barca's hand was forced in the market after the club were given a temporary reprieve from a transfer ban for breaching rules on the transfer of under-18 players while an appeal to soccer's world governing body FIFA was ongoing.
They lost the appeal and may not be allowed to buy again in the next two transfer windows but have added Suarez and Rakitic, as well as centre backs Thomas Vermaelen and Jeremy Mathieu, goalkeepers Claudio Bravo and Marc-Andre Ter Stegen and fullback Douglas to their ranks.
They have begun the La Liga campaign in confident fashion and are the only side to have won their opening two games as they seek to improve on last term's second-place finish.
