The 23-year old USA midfielder was starring for Borussia Monchengladbach this season before being unceremoniously dropped to the bench by manager Michael Frontzeck two matches ago.
"We are actively talking to German clubs," one of Bradley's Germany-based reps, Brian Eylert said.
"There have not been any offers to 'Gladbach yet. They are still thinking about it; there's been no final responses.
"There's a lot of activities going on," he said. "But we're not at the point of making a deal just yet."