Chelsea came through their FA Cup tie with Hull unscathed after an uncomfortable 2-1 win up at the KC Stadium.
Michy Batshuayi took advantage of a rare start to net within the opening exchanges following a mini-fracas.
It will give him great confidence ahead of the coming fixtures, especially considering Tammy Abraham may sit out a few with injury.
But the Tigers never gave up and chased down their more illustrious opponents at every given opportunity, spurred on by a boisterous home crowd.
Hull started the better of the teams in the second half but were hugely deflated when Fikayo Tomori netted the second of the match.
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Ross Barkley floated in a fine free-kick which was headed home by the 22-year-old, who spent the 2017/18 season on loan to Hull.
However, the game was not dead and buried yet when Kamil Grosicki scored a wickedly deflected free-kick, which spun past Willy Caballero after a huge hit off Mateo Kovacic.
Hull boss Grant McCann threw on Josh Magennis to add to the physicality Tom Eaves was already providing in attack.
But for the likes of Kurt Zouma and Tomori, they relished this kind of challenge and enjoyed their battles.
Michy Batshuayi netted a scrappy opener
However, it was a similar story for Frank Lampard’s men – who were unable to put away their chances.
Mason Mount had a brilliant chance in the first half but George Long was equal to his effort with a superb stop.
Barkley had another fine opportunity but, again, the Blues spurned it.
Kamil Grosicki scored with a free-kick
But it took a big deflection
Even with the added experience of Willian coming on, Chelsea could not put the game to bed.
Whether or not Lampard takes any confidence from this match is a different matter, with some tough games coming up.
They travel to the King Power Stadium next to face high-flying Leicester before a huge clash with Manchester United at Stamford Bridge.