During the Second Test match between New Zealand and Sri Lanka in 2015, Trent Boult pulled off one of the worst deliveries in Cricket history. The ball slipped out of Boult’s hand while he bowled to Sri Lanka opener Kusal Mendis in the second innings. The ball looped straight to Martin Guptill at second slip, sparking much amusement in the commentary box!
He even tried to hurt the umpire with his loose delivery once.