Real Madrid and Barcelona may be left red-faced after England's second tier agreed to adopt goal-line technology ahead of La Liga.
Lionel Messi and Cristiano Ronaldo are unable to benefit from goal-line technology but the likes of Barnsley and Brentford will after the English Football League (EFL) agreed in principle to introduce it to the Championship next season.
There have been growing calls for the system to be rolled out in Spain's top flight, particularly after Barcelona were denied a clear goal away to Real Betis last month.
The president of La Liga, Javier Tebas, has previously expressed a willingness to consider adopting the technology but claims it is too expensive to implement throughout the league, while the Royal Spanish Football Federation must also agree to its introduction.