Luke Littler did little to hide his frustration after losing the first set of his World Darts Championship semi-final against Ryan Searle.As Littler walked off the stage, Sky Sports cameras caught him mouthing what appeared to be some words of anger.Littler was not a fan of how the first set against Searle transpiredGettyHaving dropped the first set 3-2, the first time he’d gone behind all tournament, Littler looked up and seemingly mouthed: “F****** s***.”It was far from the ideal start for Littler in his semi-final, even though he boasted the superior average in the first set.Littler averaged an impressive 105.00 compared to Searle’s 94.50.However, ‘Heavy Metal’ proved superior on the outer ring as he landed three of his four doubles, while Littler managed just two checkouts from five attempts.But whatever Littler said to himself in the break between the first and second sets, it paid dividends.‘The Nuke’ wasted no time in getting even against Searle, winning the second set 3-1.Once again, the teenage sensation posted a triple-figure average while Searle could only counter with one of 90.62.Yet where Littler fell short in the first set on the doubles, he more than made up for it in the second.View Tweet: https://t.co/GnBjVUaSyxMore to follow…