Former Celtic midfielder, Tomoki Iwata, left NFL legend Tom Brady and Manchester United and Real Madrid icon, David Beckham blown away with his debut goal for Birmingham City last night. The former Japan MVP joined Birmingham permanently this summer after an 18-month spell at Celtic where Iwata just couldn’t cement a regular first-team spot. Iwata made just 42 appearances in the green and white Hoops scoring just once and creating three assists. Now at the League One side, Iwata took just 59 minutes to open his account with Birmingham and what a strike it was: Tom Brady and David Beckham blown…