Australia batsman Steve Smith is struck on the helmet by a delivery from England all-rounder Ben Stokes on Saturday. Ryan Pierse / Getty Images
Australia batsman Steve Smith is struck on the helmet by a delivery from England all-rounder Ben Stokes on Saturday. Ryan Pierse / Getty Images
Ashes: Australia's Steve Smith continues to be thorn in England side despite knock on helmet
Batsman unbeaten on 46 as tourists set to begin fourth day of topsy-turvy first Test 34 runs ahead with seven wickets left
