(CNN) -- Holders Portsmouth booked their place in the English FA Cup fourth round with a 2-0 victory at Bristol City that lifted some of the pressure on new manager Tony Adams.
Crouch was on target as holders Portsmouth booked their place in the FA Cup fourth round.
Peter Crouch's 38th-minute opener saw the England striker run almost the length of the pitch to put the finishing touch to a swift counter-attack.
But it was also a controversial one as the ball had appeared to have hit Crouch on both arms as he defended in the Pompey box.
Niko Kranjcar wrapped up victory with two minutes remaining after Belhadj set him up for a tap-in on the break.
City should have had a stoppage-time consolation though when Sol Campbell impeded Nick Maynard in the box but David James saved the striker's penalty.
On-loan Arsenal striker Jay Simpson inspired Premier League West Bromwich earn a fourth round tie at home to League Cup semifinalists Burnley with a 2-0 replay win at Peterborough.
Simpson's 18th-minute strike helped Albion overcome a potentially tricky tie while a second goal eight minutes before the interval from defender Paul Robinson crushed Posh hopes.
Championship leaders Wolverhampton earned a home tie against Premier League Middlesdbrough with a 2-0 win at Birmingham.
Referee Howard Webb played a part when he inadvertantly blocked Radhi Jaidi's 51st-minute pass in the centre-circle -- and directed to ball to Andy Keogh.
The Wolves striker broke clear, leaving Sam Vokes to put the visitors two goals up from close range. Keogh had earlier given the visitors, four-time FA Cup-winners, a half-time lead.
Sheffield United's reward for a 4-1 home win over Leyton Orient is a home tie with Charlton who won 1-0 at Norwich while Millwall face top flight opposition in Hull or Newcastle away after a 3-2 win at Crewe.
Nacho Novo eased the pressure on Rangers after a turbulent week by helping them to a 2-0 win over St Johnstone to book a fifth-round meeting with Forfar in the Scottish FA Cup.
Rangers again looked unconvincing against a team who ran them close in last season's semifinal but managed to bring the First Division side's 14-game unbeaten run to an end.
Stuart McCaffrey provided a much-needed boost just before half-time when he bundled into his own net, before Novo came off the substitutes' bench to secure the victory.
Kris Boyd started the game less than a week after he had looked certain to join Birmingham before the move broke down over personal terms.