Barcelona president Sandro Rosell hopes to sign Liverpool midfielder Javier Mascherano before the summer transfer deadline.
Rosell addressed the Congreso de Penas (Supporters' Clubs Congress) 2010 on Wednesday.
He told fans: "We have a great side. We also have a coach who appears to have come from the heavens. The squad has improved and we have invested 49 million in players by bringing in David Villa and Adriano.
"Between now and the end of the month there maybe one more addition or maybe not."
