Oscar fired a first-half hat-trick and Eden Hazard finally opened his account for the season as Chelsea eased to a 5-1 victory away to MK Dons and book a place in the FA Cup fifth round.
Chelsea took the lead after 15 minutes when a horrible mistake from Kyle McFadzean allowed Diego Costa to pick the ball up on the left-side of the area and he squared for Oscar to slide the ball in an unprotected net from 12 yards.
But Darren Potter levelled matters just five minutes later when his 20-yard strike took a wicked deflection off Nemanja Matic and looped into the top corner of Thibaut Courtois’ net.
Eden Hazard then wasted a glorious chance to end his season-long goal drought when, one on one with David Martin, he saw his effort saved onto the post and back into the arms of the grateful goalkeeper.
The visitors restored their lead after 32 minutes when Oscar drove in an angled drive following a lovely throughball from Reuben Loftus-Cheek.
And the player was celebrating his hat-trick a couple of minutes before the break when he scored a goal of absolute top quality, picking the ball up on the left flank, before cutting inside three challenges and bending an unsaveable effort into the corner from edge of the area.
Hazard did break his 30-game wait for a goal by tucking home from the penalty spot in the 55th minute, while Bertrand Traore made it 5-1 with a simple finish in the 63rd minute.
Arouna Kone, Aaron Lennon and Ross Barkley scored as Everton eased into the fifth round of the FA Cup with a 3-0 win at Carlisle United.
Everton made six changes from the side that lost at Manchester City in the Capital One Cup in midweek, with Seamus Coleman, Bryan Oviedo, James McCarthy, Aaron Lennon, Steven Pienaar and Arouna Kone in for John Stones, Leighton Baines, Gareth Barry, Leon Osman, Gerard Deulofeu and Romelu Lukaku.
Carlisle United 0 – 3 Everton
Milton Keynes Dons 1 – 5 Chelsea