Luke Littler has his sights set on becoming world No 1 before the conclusion of the Grand Slam of Darts.

The teenage sensation's meteoric rise has taken him from World Championship runner-up on debut as a qualifier to world champion in just two remarkable years.

Littler has revolutionised darts, winning seven major titles by the age of 18, but one accolade - world No 1 - has thus far eluded him.

That honour currently belongs to Luke Humphries but defending Grand Slam champion Littler wants to knock his old adversary off his perch before the end of the tournament.

"It's all down to business now," Littler said after completing his perfect group-stage campaign with victory over Daryl Gurney on Tuesday.

"Now we're out of the groups and hopefully I can go on and defend the title.

"I know

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