Match ends, Chelsea 4, Hull City 0.
Olivier Giroud and Willian helped Chelsea thrash Hull City to reach the FA Cup quarter-finals - and boss Antonio Conte says they have given him "good doubts" about his team to face Barcelona on Tuesday.
Willian was fantastic throughout against the Championship strugglers and scored the opener with a curling effort from outside the box.
Pedro scored the second when he slipped the ball under David Marshall after latching onto Cesc Fabregas' excellent halfway line pass.
Willian then scored his second from 25 yards after playing a one-two with Giroud.
The France striker then scored his first goal since his move from Arsenal - a smart finish from close range following debutant Emerson Palmieri's left-wing cross.
Hull improved slightly after the break and David Meyler had a penalty saved by Willy Caballero.
Willian almost wrapped up a first career hat-trick late on, but he hit the post from 20 yards.
Chelsea will discover their next FA Cup opponents on Saturday at 20:00 GMT.
After that comes Tuesday's Champions League last-16 first leg at home to Barcelona.
Conte told BBC Sport: "It was a positive night, Olivier Giroud got his first goal and Willian had an impressive performance.
"For sure when I go home, I have many good doubts because I have to try to make the best decision for Tuesday and to have many options is good for me and good for the team."
So easy for Chelsea
Conte's Premier League champions are 19 points off leaders Manchester City, and face the La Liga leaders in the Champions League - so the FA Cup is probably their best chance of winning a trophy.
The Italian again rested regular starters such as Eden Hazard, N'Golo Kane and Cesar Azpilicueta - although he still named a strong team, who had too much ability for the Tigers to cope with.
Willian's first came after Kevin Stewart lost the ball to Giroud. He then set up Fabregas with a bit of skill, but the Spaniard's shot was saved by David Marshall.
Chelsea were dominant - Giroud shot over from Pedro's scooped pass, before Willian and Pedro both forced saves.
Fabregas then set up Pedro brilliantly with an aerial pass from the centre circle to add their second.
They were cruising, and Willian started a move and then finished it from 25 yards via the post after loaning the ball to Giroud.
Giroud, an £18m January signing from Arsenal, then stubbed the ball home from six yards after being set up by Emerson - another January recruit.
They did concede a penalty when Fabregas fouled Harry Wilson but Caballero made his fifth penalty save from the last eight kicks he has faced, excluding shootouts.
Willian had a chance for his hat-trick but was denied by a Jackson Irvine block, and Davide Zappacosta forced a good save from the rebound.
Willian went even closer when he crashed the ball off the outside of the post with two minutes left after some good footwork to lose two defenders.
Hull can go back to league worries
The Tigers are only one point clear of the Championship relegation zone as they bid to avoid back-to-back drops from the Premier League to League One.
They were without a host of first-team players, including three different ineligible defenders on loan from Chelsea. Midfielder Ryan Mason had to retire this week because of a fractured skull he suffered against Chelsea last year.
The odds were always against them at Stamford Bridge, but realistically they never gave themselves a chance, starting from the moment Stewart needlessly gave the ball away within 90 seconds for the Blues' opening goal.
Meyler missed a chance to pull one back from the spot soon after the break, and to make matters worse Wilson had to go off with a shoulder injury suffered while winning the penalty.
City were better in the second half and Irvine, Nouha Dicko and Jon Toral forced saves.
The FA Cup was a nice distraction for Tigers boss Nigel Adkins, who replaced Leonid Slutsky in December and has won four of his 14 games to date, but their final 15 league games are much more pivotal for their future.
Man of the match - Willian
'Game plan went out of the window after two minutes'
Hull boss Nigel Adkins told BBC Sport: "They were very good in the first half. We gifted them some positions but we knew it was going to be a tough ask. We were not close enough in the first, but the second half was a totally different story.
"We could have taken the foot off the gas, but we were a lot more assertive, the players responded in a positive manner and we have 15 cup finals now. It was good character.
"We came with a game plan that went out of the window within two minutes. It's a great learning lesson for some of the younger players - you cannot give the ball away cheaply, but the players showed great spirit in the second half because there is a spirit around ourselves."
Match stats - seven in a row for Chelsea
- Chelsea have now won seven consecutive matches against Hull City in all competitions, scoring 17 goals and keeping six clean sheets.
- Chelsea's opener was scored after just 106 seconds, and there were just 288 seconds between the Blues' second and third goals.
- The Blues have progressed from 10 of their last 11 fifth round FA Cup ties, only losing against Manchester City in 2014.
- Willian has had a hand in 14 goals in his last 14 starts for Chelsea in all competitions (nine goals, five assists).
- Olivier Giroud has been directly involved in five goals in his last two appearances against Hull in all competitions (three goals, two assists). Indeed, the Frenchman has had a hand in three goals in a single match for the first time since January 2017 for Arsenal against Bournemouth.
- The Tigers have failed to score in three consecutive FA Cup ties away from home against top-tier opponents for the first time since January 1909 - when they also drew their third straight blank against Chelsea.
Chelsea's next game against Barcelona is likely to be a tougher test.
Hull are away to Middlesbrough in the Championship, also at 19:45 GMT on Tuesday.
- 4FàbregasSubstituted forScottat 62'minutesBooked at 82mins
- 18GiroudSubstituted forMorataat 70'minutes
- 11PedroSubstituted forHudson-Odoiat 45'minutes
- 37dos Reis Carvalho
- 35StewartBooked at 33mins
- 49WilsonSubstituted forToralat 55'minutes
- 4IrvineBooked at 86minsSubstituted forBattyat 88'minutes
- 9DickoSubstituted forCampbellat 72'minutes
- Andre Marriner
- Shots on Target
Second Half ends, Chelsea 4, Hull City 0.
Gary Cahill (Chelsea) wins a free kick in the defensive half.
Foul by Jon Toral (Hull City).
Willian (Chelsea) hits the right post with a right footed shot from outside the box. Assisted by Callum Hudson-Odoi.
Substitution, Hull City. Daniel Batty replaces Jackson Irvine.
Willian (Chelsea) wins a free kick in the attacking half.
Foul by Kevin Stewart (Hull City).
Jackson Irvine (Hull City) is shown the yellow card for a bad foul.
Callum Hudson-Odoi (Chelsea) wins a free kick in the defensive half.
Foul by Jackson Irvine (Hull City).
Foul by Álvaro Morata (Chelsea).
Kevin Stewart (Hull City) wins a free kick in the attacking half.
Attempt missed. Adama Diomande (Hull City) header from the centre of the box is close, but misses the top left corner. Assisted by Jon Toral.
Kyle Scott (Chelsea) is shown the yellow card for a bad foul.
Foul by Kyle Scott (Chelsea).
Adama Diomande (Hull City) wins a free kick on the right wing.
Attempt saved. Jon Toral (Hull City) left footed shot from the centre of the box is saved in the centre of the goal.
Corner, Chelsea. Conceded by David Marshall.
Attempt saved. Daniel Drinkwater (Chelsea) right footed shot from outside the box is saved in the centre of the goal.