Joel Wilson is saved by technology in challenging test for the umpire

• Record-equalling eight decisions overturned at Edgbaston
• Joe Root defends the under-fire umpireJoel Wilson may welcome his switch to the TV umpire’s booth for the second Test at Lord’s next week after the Trinidadian official equalled the record for the most overturned decisions in a match. Related: Australia seal crushing win in first Ashes Test as England collapse Day 1: Over 14.2 Review by England (bowling), batsman Khawaja (review upheld); Over 34.6 Review