Al-Jazeera reporter says second source confirmed HGH shipments to Ashley Manning

DENVER - The reporter behind al-Jazeera's investigation that linked Peyton Manning to human growth hormone again defended her team's report Sunday, telling CNN it had a second source who corroborated the allegations made against Manning and his wife.

Deborah Davies, while a guest on CNN's "Reliable Sources" Sunday morning, said Charles David Sly was not al-Jazeera's only source who alleged Peyton's wife, Ashley, received multiple shipments of HGH from The Guyer Institute in Indianapolis, where Peyton was a patient in 2011.

Related: Al-Jazeera stands by report that Manning's wife received HGH

"What you didn't know until now is we had a second source," Davies told CNN's Brian Stelter. "Absolutely impeccably placed, knowledgeable and credible who confirmed exactly what Charlie Sly said. Shipments of HGH were repeatedly, repeatedly sent to Ashley Manning in Florida and other places in the U.S."

Davies said her team did not reveal their second source in the documentary because "I suppose it simply would have led to another range of speculation, another set of 'fishing expedition' questions," adding that "there are different kinds of sources. There are some you can name, there are some you can't. This is a source we cannot name, we could not name. The value of that source was to add to the level of confidence we already had in what Charlie Sly was already saying."

"The Dark Side," a documentary intended to expose the illegal use and distribution of performance-enhancing drugs in sports, relied primarily on the accounts of Sly, a man labeled as a pharmacist, who was filmed undercover saying The Guyer Institute shipped HGH "all the time, everywhere, Florida" to Ashley Manning and that "it would never be under Peyton's name. It would always be under her name."

Full report on The Denver Post