Luke Littler suffers shock defeat to Luke Woodhouse in World Grand Prix opener

<ul><li><p>Littler’s title defence ends in 2-1 first-round loss</p></li><li><p>Michael van Gerwen also crashes out of last 32</p></li></ul><p>Luke Littler suffered a 2-1 defeat to Luke Woodhouse on his return to the oche as the defenc