Los Angeles Galaxy head coach Bruce Arena has refused to discuss the possibility of signing Brazil international Kaka.
Arena admitted the 30-year-old was a "great player" but said any decision on whether the Galaxy pursued his signature would be taken in consultation with franchise owners AEG.
He told www.lagalaxy.com: "We can afford whatever Tim Leiweke and Phil Anschutz say we can afford.
"Those kinds of decisions really go up the ladder and each situation as it comes our way is evaluated.
"We have had literally, over the four years I've been here, discussions over a couple of dozen players and the financial impact that it has on our business. In the case of any player we do that.
"We don't discuss acquisitions or transfers or anything of players with other teams.
“That's ethically wrong.
"At this point in time I'm not going to have a public opinion of one player over the other unless those players are free agents."