Bradford City's unlikely English FA Cup journey continued as they knocked over EPL side Sunderland 2-0 to reach the quarter-finals.
The League One (third tier) side continued where they left off in a stunning 4-2 defeat of Premier League leaders Chelsea in the previous round to ease past Gus Poyet's side.
Roared on by a fervent Valley Parade crowd, Bradford were ahead in the third minute when John O'Shea put through his own goal.
Jon Stead sealed victory just past the hour to put the Yorkshire club in the last eight for the first time since 1976.
Championship (second tier) leaders Middlesbrough could not reproduce the form that saw them knock out Manchester city in the fourth round as they went down 2-0 at holders Arsenal.
Olivier Giroud scored both goals for the Gunners.
Arsenal were in no mood to crash out against lower league opposition and two goals in two opening half minutes took the tie away from Middlesbrough.
In a battle between two struggling Premier League sides Aston Villa beat Leicester City 2-1.
After a woeful first half at Villa Park, Leandro Bacuna curled in the opener in the 68th minute and loan signing Scott Sinclair added a second from a tight angle before Leicester's record signing Andrej Kramaric pulled a headed goal back in stoppage time.
Villa's incoming manager Tim Sherwood watched the game from the stands.