FA Cup review:The size of Alan Pardew's task at Barclays Premiership strugglers Charlton became even more apparent as they were dumped out of the FA Cup by Coca-Cola League One side Nottingham Forest.
Forest were on the wrong end of a 5-0 drubbing by promotion rivals Oldham last time out but put their own poor form behind them to create a fine cup upset.
The Addicks were woeful in defence and failed to create anything convincing in the final third as goals from Junior Agogo and Grant Holt put Forest in the fourth round.
Neil Warnock's under-strength Sheffield United are also out, after slumping 3-0 at League One promotion-hopefuls Swansea.
Irishman Thomas Butler scored twice in six second-half minutes to punish the Blades for a sluggish display.
Adebayo Akinfenwa saw his shot blocked after 53 minutes but when the ball broke free Thomas Butler was first to react, sliding home from close range before following up with a left-foot finish after an hour.
Butler continued to impress and after 66 minutes he was felled by Derek Geary, resulting in a penalty that Leon Britton converted with ease.
Leicester scored in the 92nd minute to earn a 2-2 draw and a replay with Fulham.
Danny Cadamarteri was the scorer, firing home moments before the whistle after Moritz Volz's fine drive looked to have secured the Cottagers' place in the fourth-round draw.
American striker Brian McBride and Patrick Kisnorbo's goals cancelled each other out as the game picked up after a goalless first period.
Championship leaders Birmingham overcame to first-half dismissal of Radhi Jaidi to claim a last-gasp 2-2 draw against Newcastle.
FA Cup specialist Dudley Campbell opened the scoring and Steven Taylor levelled the scores before Kieron Dyer and Sebastian Larsson — four minutes from time — ensured the sides would meet again.
Substitute Nicky Forster got the goal ensured Phil Brown's Hull would be heading to Middlesbrough for a replay on the back of a 1-1 draw.
Australian striker Mark Viduka looked to have claimed the only goal of the game for Boro when Forster, on the field for just two minutes, headed David Livermore's centre past Brad Jones.
Chelsea ran out 6-1 winners over a Macclesfield side whose brave resistance came crashing down when goalkeeper Tommy Lee hauled down £30 million striker Andriy Shevchenko inside the area.
Lee was sent off, Lampard converted the spot-kick to complete his hat-trick following two first-half goals and defender David Morley was forced to don the gloves.
John Murphy had briefly given Paul Ince's side hope making it 1-1 but goals from Shaun Wright-Phillips, Mikel John Obi and Ricardo Carvalho completed the rout.
West Ham found some form in front of goal to record a 3-0 win over Brighton.
Mark Noble claimed the first after good build-up play from new signing Luis Boa Morte and Carlos Tevez left him with a simple finish inside the area.
Carlton Cole then scored for only the second time in his Hammers career before Hayden Mullins added a third.
Nothing could separate Portsmouth and Wigan for more than an hour but Kanu was the match-winner after Lee McCulloch had cancelled out Andrew Cole's opener.
With 25 minutes left, Andrew Cole, afforded a rare start by Harry Redknapp was in the right place to bury Sean Davis' cross from the right flank.
Premiership bottom club Watford secured a confidence-boosting 4-1 victory over Stockport despite conceding the first goal of the game, while Norwich beat non-league Tamworth by the same score in the early kick-off.
