Giovanni Trapattoni will take a close look at the Red Devils winger after drafting him into the Boys in Green squad for their upcoming game
Brady scored for Ireland Under-21s in their 2-1 loss to Hungary on Thursday, but with Noel King's side eliminated from Euro 2013, the 20-year-old has been called up to the senior squad.
Ireland U21 goalkeeper Ian McLoughlin announced the call-up on Twitter, stating that he was: "Absolutely buzzing for Robbie getting called up. Been a big player us in 21s!!"
Brady spent last season on loan at Hull City and won rave reviews from Tigers fans, scoring three goals in 41 appearances for the Championship side. His scoring record for the Ireland U21s is far more impressive, with seven goals in 11 starts under King.
The Dubliner has yet to make a first-team appearance for United, but was given game time on the wing and at full-back in the Red Devils' pre-season tour.
Ireland's friendly on Tuesday at Craven Cottage comes in the wake of an underwhelmling start to their 2014 World Cup qualification campaign. Giovanni Trapattoni's side narrowly beat Kazakhstan 2-1 on Friday thanks to late goals from Robbie Keane and Kevin Doyle.
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