ICC umpires Daryl Harper, left and Russell Tiffin, second left, wait on a referral from the third umpire during a Test match between England and West Indies in 2009. DRS will only be used if both sides agree ahead of a series, or in ICC tournaments.
ICC umpires Daryl Harper, left and Russell Tiffin, second left, wait on a referral from the third umpire during a Test match between England and West Indies in 2009. DRS will only be used if both sideShow more