Andy Murray has raged at Wimbledon officials after they decided to pull the roof over Centre Court when he was one set from victory in his men's singles semi-final against Jerzy Janowicz.
Murray lost the first set on a tie-break, but he upped his game, winning the following two sets to lead 6-7 (2/7) 6-4 6-4.
In the third set Janowicz started complaining about the light, but his complaints stopped as soon as he gained a lead.
But when Murray regained the initiative, the Pole remonstrated with the umpire.
And following the end of the third set, tournament referee Andrew Jarrett told the players the roof would be closed and the lights switched on, much to Murray's annoyance.
Murray was overheard on courtside microphones saying: "How long has he been complaining about the darkness? It's not even dark."
The Centre Court crowd also objected, chanting: "Stay on, stay on."
British women's number two Heather Watson echoed their views.
"Very poor!! Awful decision about the roof," she wrote on Twitter.
TV personality Phillip Schofield added: "Not fair!!! Ok Andy, you'll just have to beat the grumbling Janowicz with the roof shut. You're playing him AND the officials!!"