By Matt Maltby Luke Littler will face Luke Humphries in the World Darts Championship final on Wednesday – in a blockbuster showdown that offers him a chance of redemption. Littler, 16, has set Ally Pally alight over the last fortnight and is the youngest-ever player to reach the decider of the premier darts tournament. The teenager has already proved he is the real deal but produced his biggest statement yet as he downed eighth seed Rob Cross 6-2 in stunning fashion on Tuesday night to reach the final. And he will go up against Humphries, who made light work of Scott Williams in the second sem…