New Delhi, Nov 23 (ANI): Bollywood actor Hrithik Roshan will reportedly fly to the United States for further treatment of a blood clot on his brain surface which was surgically removed in Mumbai on July 7. The actor is believed to have had a relapse since then. Dr V K Mishra, who attended to Hrithik at the Mumbai surgery, had confirmed at the time that the operation had been successful. The blood clot was discovered after Hrithik, who had been complaining of persistent nagging headaches, decided to get an MRI done.