The Italian tactician praised the Red Devils player's creativity but insisted that, against Germany, it is experience that is required
After breaking the goalscoring record for the Ireland under-21 team, Brady made his senior debut for the Boys in Green against Oman on September 11, where he was instrumental in the 4-1 victory, marking the occasion with a goal and two assists.
"After the game against Oman I said congratulations to him, and I liked him a lot," Trapattoni said of Brady's debut at Craven Cottage.
The 20-year-old winger, who spent last season on loan at Championship outfit Hull City, made his senior debut for the Red Devils in their 2-1 League Cup victory over Newcastle yesterday evening, and has been named as a standby player for Ireland's upcoming World Cup qualifiers against Germany and Faroe Islands.
However, the Italian tactician was keen to emphasise that, while Brady was a creative player, he needed to rely on more experienced players, such as Glenn Whelan and Keith Andrews.
"He is a creative player, but, against this opponent (Germany), we need players with experience. We have [Glenn] Whelan, [Keith] Andrews, [Keith] Fahey," Trapattoni told reporters.
Republic of Ireland welcome Germany to Dublin on October 12 before making the trip to Torshavn to take on Faroe Islands.