By Josh O’Brien Luke Littler has “two different personas” according to the darts sensation’s manager Martin Foulds. Littler has enjoyed a sensational rise to fame after becoming the youngest ever PDC World Championship finalist at the start of the year. He couldn’t quite get over the line against Luke Humphries, but his stock has been on the increase ever since. The teenager has already become a household name across the country and some have concerns over what the sudden spotlight could do to someone so young, but Foulds has explained he has little worry that Littler can take it all in his st…