Theo Walcott plundered a well-taken double as Arsenal powered their way into the Carling Cup quarter-finals with a 4-0 win at Newcastle.
Walcott's controversial 53rd-minute strike, when defender Mike Williamson appeared to be blocked by Nicklas Bendtner, made it 2-0 after Tim Krul's own goal in first-half injury time.
However, there was no fortune about Bendtner's 83rd-minute strike or Walcott's second with two minutes remaining as the Gunners powered their way into the last eight.
Substitute Stewart Downing's extra-time goal booked a quarter-final spot for 10-man Aston Villa and ended the challenge of brave Burnley with a 2-1 win at Villa Park.
The England winger settled the fourth-round tie with his powerful shot after 96 minutes.
Burnley defender Clarke Carlisle had cancelled out Villa substitute Emile Heskey's opener with just a minute of normal time remaining.
Villa had winger Marc Albrighton sent off four minutes after Downing had scored - for a professional foul - but last season's beaten finalists held on to reach the last eight.
West Ham's substitutes came to Avram Grant's rescue tonight as they helped seal a place in the last eight with a 3-1 extra-time victory over Stoke.
The Potters looked set to pile the pressure on Hammers boss Grant after the home side missed several chances to cancel out Kenwyne Jones' early opener at Upton Park.
But captain Scott Parker finally equalised with six minutes of normal time remaining before Manuel Da Costa and Victor Obinna completed the turnaround.