Luke Littler suffered a rare quarter-final defeat on night eight in the Premier League on Thursday, losing 6-4 to Michael Smith in Dublin. The 17-year-old has now dropped out of the top four in the table, with Mark Webster claiming ‘something switched’ during his defeat. Littler had won six of his seven quarter-finals in the tournament before Thursday’s trip to the Republic of Ireland. He had racked up 13 points and sat third in the table despite not yet picking up a nightly win in the four-month-long competition. Littler took the early initiative on Thursday, claiming the first break and move…