The entire world number 38 said they”weren’t professional” in a 4-6 6-2 6-3 defeat from Bath which featured a range of suspicious calls.

“That is unacceptable. They were creating a great deal of mistakes,”” Sakkari stated. “We may not possess amateurs.”

Konta whined about a few calls, including one on match point.

“I presume it had been quite tough at both our ends but when it is such a difficult match that way – so many heightened emotions – the line judges may have exactly the very exact same sort of pressure, precisely exactly the very exact same sort of stress,” explained Konta, whose win over Sakkari sealed victory for the uk at the Group A tie.

“Everybody’s human, but it was definitely a challenging issue to deal with.”

The roundrobin event – which is being held in Britain for the first time in 26 years – will not possess Hawk Eye technology to review line calls but Konta said”it is the question we confront” and added it was”that the nature of the game”.

Lawn Association tournament manager Rebecca James said:”The officials selected with this event by the Association of British Trainers Officials (ABTO) have all worked at the best levels of the game.

“The chair umpires are globally certified and selected by the ITF. The traces people are wholly paid, LTA licensed officials, who have worked Wimbledon semi-finals and finals between them, including most over previous Davis Cup World Group ties.”

World number 171 Valentini Grammatikopoulou, who’d earlier lost 6-3 4-6 6-3 to British number-two Katie Boulter, described the umpiring as”unjust” and”not so good”.

“I’m really disappointed,” she explained. “It’s really unfair to play like this. Three forecasts were in deuce. It is possible to watch it actually and I will show her the balls were out.”

“She’s [Boulter] deserved to win but let us play fair. This is exactly the reason why we play , you realize? Maybe not to judge exactly the traces. It’s extremely tough. It’s not about the way she played, it’s about fair play.

“If the ball was outside, I accept. If the ball had been , I admit. Although not whether it’s really out. It will not matter but if I want to lose, I want to lose nice.”

Once an telephone denied her two break points by the finish of their group, 2-2, boulter , also whined during the match.

“There were a couple of bad calls here or there, if they were good or bad I really don’t know,” explained Boulter. “There clearly was a let that I thought was not predicted – it goes both ways.”

GB captain Anne Keothavong added:”The line-calling now didn’t affect the results of those games. There have been lineup calls that are tight. Some of the line that is bad calls went both ways, but that is .

“There has been a lot of strain on the market. So I’m sympathetic to officials nowadays, However, my brother is an official. It’s not easy available for those too.”