Queretaro on Tuesday threatened to release Ronaldinho if the former two-time World Player of the Year doesn’t return to the club as soon as possible. The 34-year-old Brazilian, who signedfor the Mexican club in September, has yet to return to pre-season training, which began on Dec 8, prompting club sporting director Joaquin Beltran to say: “If Ronaldinho does not come back inthe next week, we will take a decision. He has already missed a large part of the pre-season and nobody is above the institution.”