In cricket, umpires call is a term used when the on-field umpires original decision is given the benefit of the doubt for a leg-before-wicket (LBW) that was challenged and reviewed. The Decision Review System (DRS) was introduced in cricket in 2009, and the umpires call was introduced in 2016 to make the DRS more technically effective. The umpires call comes into play when the DRS is used for an LBW, and the third umpire uses ball tracking technology to determine whether the batter was out LBW. If the technology proves inconclusive due to the tightness of the decision, the result would be umpires call, and the decision stays on the field even if the ball is shown to be just clipping the stumps. The umpires call is controversial because it is a margin of error built into the system itself, and it can be confusing for viewers.