The Red Devils have confirmed that the promising 20-year-old Republic of Ireland international will join the Tigers on loan
The 20-year-old played for Hull last season, making 39 league appearances, scoring three goals and Red Devils' under-21 coach Warren Joyce told MUTV that Brady was to re-sign for the Tigers on a one month loan deal.
Brady was a regular during Manchester United's pre-season campaign this year and made his senior debut for Sir Alex Ferguson's side as a substitute in a League Cup fixture against Newcastle United.
The former St Kevin's Boys youth recently broke the goalscoring record for the Republic of Ireland under-21 team and was subsequently promoted for senior honours by Giovanni Trapattoni.
He was handed his senior debut in the 4-1 friendly victory over Oman at Craven Cottage, where he scored one goal and assisted two others.
Meanwhile, former Republic of Ireland youth international Michael Keane is also set to leave Old Trafford in order to join Leicester City on a short term loan deal.