FIFA security chief Chris Eaton (pictured) told Sports Illustrated's website SI.com on Thursday that they have worked together with CONCACAF to investigate games at June's tournament.
"There has been information that some matches in the Gold Cup were manipulated," Eaton was quoted as saying.
"We worked with CONCACAF at the time and CONCACAF have been very interested in following up any information that can be revealed in the future on that," he added.
"Early on we were aware of comments made by a party in Europe, who believed that certain games were potentially targets in this competition.
"We tracked those [games], we found that there were no significant anomalies and when we analysed the games overall, found that they were pretty consistent with both history, as far as the results, and we didn't find any unusual patterns.
"There was nothing that was out of sync with what reasonable expectations would have been. We had no reason to find that there was anything of greater concern," he said.
Blazer, a member of FIFA's Executive Committee, was not immediately available to comment on the SI.com report.
