Attorney Sheldon Sorosky says he was told Saturday morning by another defense team member that police had obtained the warrant.
Police spokeswoman Laura Kubiak said she could not confirm a search warrant was executed.
Police said Friday burglars broke into the offices of Blagojevich attorney Sam Adam and his son, Samuel E. Adam, and took items that may contain information about Blagojevich's case.
Blagojevich is charged with scheming to trade or sell President Barack Obama's former U.S. Senate seat.
