Newcastle United are chasing USA international pair Eddie Johnson and Jozy Altidore.
The Sunday Sun says Toon chairman Chris Mort and United owner Mike Ashley discussed possible moves for Johnson and Altidore while on business in the States last week.
New York Red Bulls starlet Altidore, just 18, is rated as one of the brightest talents America has ever produced, while Allardyce is aware Johnson is out of contract at Kansas City Wizards and available on a free.