England's Jonny Bairstow played down his light-hearted celebration yesterday after he welcomed his Ashes century by mimicking a headbutt - a reference to a controversy which threatened to overshadow his series. After the fist-pumping and jumping for joy at the WACA, he threw in a light-hearted and spontaneous head-butt of the helmet he had just taken off - revisiting the unusual greeting he imparted to Australia opener Cameron Bancroft at the start of the tour.

England's Jonny Bairstow celebrates his ton against Australia on Day Two of the third Ashes Test at WACA in Perth yesterday. Pic/Getty Images