Arsenal were left frustrated as Championship side Hull City forced an FA Cup fifth-round replay after a 0-0 draw at the Emirates Stadium.
Arsenal, who beat Hull in the 2014 FA Cup final, had much the better of the game but were repeatedly denied by Hull keeper Eldin Jakupovic.
Although Hull enjoyed occasional chances on the counter, Arsene Wenger's men dominated the first half at the Emirates Stadium, with Mohamed Elneny, Danny Welbeck -- making his first start since April -- and Theo Walcott all going close.
The pattern continued in the second half, with Walcott and Alex Iwobi both threatening before Joel Campbell saw a free kick tipped onto the post, while Jakupovic then produced another excellent save to keep out a deflected Welbeck strike.
Alex Oxlade-Chamberlain flashed a shot wide in the 87th minute and Alexis Sanchez saw a free kick saved in injury time as Hull held on to secure a replay at the KC Stadium.
Ross Barkley and Romelu Lukaku struck for Everton in a 2-0 victory over Bournemouth to book their place in the FA Cup quarterfinals.
Bournemouth had the chance to take the lead in the first half after winning a penalty following a James McCarthy handball, however, Charlie Daniels' spot kick was saved by Joel Robles.
Everton made the hosts pay for that miss shortly after the restart as Barkley fired them into the lead with a deflected effort that looped over Adam Federici.
And Lukaku made sure of the win for the Toffees 14 minutes from time, converting from close-range after Gareth Barry had flicked on a Bryan Oviedo corner.
Championship side Reading eliminated West Bromwich Albion with a 3-1 win to reach the quarterfinals of the competition.
West Brom took the lead through Darren Fletcher nine minutes into the second half, with the midfielder finding the corner of the net with a low strike.
However, the home side were level just a few minutes later when Paul McShane powered a header past Ben Foster following Oliver Norwood's delivery.
And Reading then turned the game around in the 72nd minute, with Michael Hector guiding home another ball into the box from Norwood.
West Brom piled on the pressure in the closing stages as they went in search of an equaliser, with Saido Berahino seeing an effort cleared off the line, only for Reading substitute Lucas Piazon to kill the game off with a strike in injury time.
Watford booked their place in the last eight of the FA Cup with a 1-0 victory over Leeds United thanks to a Scott Wootton own goal.
Wootton turned into his own net eight minutes after the break, diverting Ben Watson's cross past Marco Silvestri at the far post.
Watford pushed for a second late on, with Jose Holebas and Etienne Capoue both going close, but the hosts were unable to find another.