England's Football Association has repeated their call for goal-line technology as Queen's Park Rangers became the latest club to suffer from a clear case of human error.
The London club were denied a goal in the 20th minute of their Premier League relegation clash at Bolton Wanderers when Clint Hill's header was well over the line before being clawed out by home keeper Adam Bogdan.
Television replays vindicated QPR's sense of injustice and to make matters worse they ended up losing 2-1 - a result that means they will end the day in the bottom three.
In London, Didier Drogba scored his 100th Premier League goal as Chelsea beat 10-man Stoke City 1-0 to put the pressure back on Arsenal in the chase for Champions League football next season.
A stamp from Stoke's Ricardo Fuller saw the visitors play a man short for 65 minutes.
Bolton Wanderers claimed a vital 2-1 victory over Queen's Park Rangers to climb out of the Premier League's relegation zone on Saturday in a basement scrap that again raised calls for goalline technology.
On a day when the spotlight was on the clubs fighting to stay up, QPR were left to rue having a goal ruled out in the first half despite Clint Hill's header clearly crossing the line before being clawed out by Bolton's keeper.
They ended the day in the bottom three after Blackburn Rovers won the day's other basement clash, beating Wolverhampton Wanderers 2-0 at Molineux.
Fifth-placed Chelsea boosted their top-four hopes with a 1-0 home defeat of Stoke City in Roberto Di Matteo's first league game as caretaker manager to move level on points with Arsenal.
Liverpool's hopes of a top-four finish faded further after a 1-0 defeat at Sunderland.
And Tottenham Hotspur have lost their third straight match, going down 1-0 at Everton.
The two main title protagonists Manchester City and Manchester United play on Monday.