Littler 8-5 Humphries
Luke Littler has a snarl on his face as he crashes in a 180 - and then another!
Leaves 42 for an 8-5 lead - and takes it out. Three straight legs, now three legs from the title.
Littler 7-5 Humphries
Wayne Mardle
Former World Championship semi-finalist on Sky Sports
Luke Humphries knows he's in trouble. Luke Littler has really put his foot on the gas in the past two legs.
Littler 7-5 Humphries
'Only one Luke Littler' echoing around London.
He almost takes out 167 in the next leg, just missing the bull.
But it matters not, he nails double 10 to move two legs ahead with a break of throw.
Littler 6-5 Humphries
Glen Durrant
Former Premier League champion on Sky Sports
Image source, PA MediaThe atmosphere in this arena is off the scale.
That is one of the best things I've seen in a darting arena.
This is a rivalry we could see for the next 10-20 years.
What a moment.
Littler 6-5 Humphries
Unbelievable!
He's a nine-dart machine, Luke Littler.
The O2 Arena goes mad and Luke Humphries shares a warm hug with his opponent.
Seven treble 20s, a treble 19 and double 12. Classic.
Littler 6-5 Humphries
Wayne Mardle
Former World Championship semi-finalist on Sky Sports
Image source, PA MediaThere is nothing this kid and phenom can't do.
Littler 6-5 Humphries
HE CAN!!!!
Littler 5-5 Humphries
A best-of-21 has turned into a best-of-11.
And both players return with 180s! Littler with two straight... he couldn't?
Littler 5-5 Humphries
Luke Humphries hits the green lipstick of the treble 19 three times in the same visit to register a superb 171 that breaks the back of leg 10.
The world champion lands double eight and we're level at the mini-interval.
Littler 5-4 Humphries
Glen Durrant
Former Premier League champion on Sky Sports
Image source, PA MediaLuke Humphries will be the happier player if they go off level at the break.
Luke Littler will see this leg as a bit of a freebie.
Littler 5-4 Humphries
Luke Littler absolutely rattling off the legs when he throws first.
Humphries has not had a sniff against throw in the last couple.
Littler 4-4 Humphries
Wayne Mardle
Former World Championship semi-finalist on Sky Sports
That was world class.
Littler 4-4 Humphries
Sensational clutch double 18 finish from Luke Humphries with his opponent waiting on a double to break.
Locked level again.
Littler 4-3 Humphries
The 17-year-old looks comfortable on his own throw - even hitting tops with 60 left to leave his favourite double 10.
And he shows why it's his favourite.
Littler 3-3 Humphries
Wayne Mardle
Former World Championship semi-finalist on Sky Sports
It is still very difficult to call. Neither have settled 100% for my liking.
Littler 3-3 Humphries
Bit of a weird final, the odd bit of heavy scoring but plenty of nerves and some very uncharacteristic mistakes.
However, Luke Humphries calms himself down to land double 16 and hold throw.
Littler 3-2 Humphries
Big leg this for Luke Littler after seeing that 2-0 lead evaporate.
And he takes it out in 15 darts with very little ado.
Littler 2-2 Humphries
A bounce-out in leg four for Luke Humphries is a hindrance he can do without.
But Luke Littler busts 80 the exact same way Humphries did - hitting double 15 when going for double 10.
Littler misses two more darts at double - and Humphries hits tops.
Littler 2-1 Humphries
The world number one shakes off that disappointment with a 180 and 123 in the next leg.
And he takes out 58 to break straight back, his accuracy at double top restored.
Littler 2-0 Humphries
Image source, PA MediaA very sloppy visit on 76 from Luke Humphries is not punished by his 17-year-old opponent.
But goodness me, Humphries busts on double 15 when going for double 10 - what a mistake!
And Littler lands double five to go two legs ahead.