The expert report, which was presented at a news conference by Mexico City authorities, identified a number of deficiencies in the construction process linked to the May 3 disaster.
Mexican clubs are looking to extend a long reign of dominance in the CONCACAF Champions League, having won the tournament for the past 15 years running.
Between the end of 2006, when the government launched a military offensive against the drug gangs, and December of last year, Mexico had 80,517 reports of missing persons, according to official figures.