Trapattoni brought Kevin Doyle and Shane Long off the bench but did not call upon McClean, who has been outstanding for Sunderland this term - a move that has clearly enraged the 23-year-old.
Tweeting from his official account @JMcC-23, the winger said: "Delighted as a fan we got the win.. Personal level #fuming #f****njoke #embarrassing." The tweet was later deleted.
Trapattoni is aware of McClean's rant and could fine the former Derry City man for his actions, or even kick the player out of the Republic's squad for their friendly against Oman at Craven Cottage on Tuesday - a game in which he probably would have started.