London police have conducted a high-profile investigation into the News of the World's role in a series of illegal interceptions into celebrities' voicemails.
London police said they would not comment on Rooney's case.
The News of the World has acknowledged that the practice of illegal hacking was more widespread than it had maintained when two employees were jailed in 2007 for eavesdropping on voicemail messages of royal employees.
The paper recently had three journalists detained for questioning, and said it will pay compensation for an unspecified number of "justifiable claims."
Rooney has regularly seen allegations about his private life splashed across British newspapers.
"Newspapers hacking into phones!! Desperate and Disgusting!!!!" Rooney's wife Coleen wrote on her Twitter account.
The News of the World has already paid $1.2 million to Gordon Taylor, the chief executive of the Professional Footballers' Association, to settle a hacking case against the paper.
The News of the World is owned by News International Ltd., which is a subsidiary of Rupert Murdoch's News Corp.