By Matthew Cooper James Wade believes teenage sensation Luke Littler is “extremely good” for darts, despite the 17-year-old “ruffling a few feathers” as he continues his rise. Littler recently won the Belgian Open on his European Tour debut, beating Rob Cross 8-7 in the final. He was also involved in a tense exchange with Ricardo Pietreczko in the semi-finals, with Littler winning their match 7-3. Following his defeat, Pietreczko had some words with Littler and the German later accused him of “arrogance” on social media. He wrote: “I really appreciate the fact that he can play a game like that…