While both CAIROS and GoalRef use magnetic fields around the goal and need to insert a chip in the ball, Hawk-Eye and GoalControl use a 3D imaging system to determine the precise location of the ball.

CNN: Latecomer wins FIFA goal-line tech deal

And Shivnarine Chanderpaul was controversially given out to a ball which Hawk-eye predicted would have missed the stumps off James Anderson for 70.

BBC: Swann defends umpiring referrals

The controversial Hawk-Eye ball-tracking system, which was developed in England and can accurately call LBWs (leg before wickets), catches and run-outs, is now used in other sports, including tennis.

CNN: Tech puts cricketers on right lines