Tom Curran in line for England debut in fourth Ashes Test against Australia

• Surrey bowler could replace injured Craig Overton
• England searching for right attack to take 20 wicketsTom Curran is the frontrunner to replace Craig Overton in the England team and make his Test debut at a sold-out Melbourne Cricket Ground on Boxing Day.Curran was not part of the original Ashes squad – nor even first reserve when it was named in September – but after Overton was diagnosed with a cracked rib during the defeat in Perth, the 22-year-old Surrey right-armer