Borussia Dortmund's sporting director Michael Zorc has said the "decision is final" that Jadon Sancho will remain with the club this season.
The England international is a target for Manchester United but they are unwilling to pay the Bundesliga side's €120 million (Dh519m) valuation.
Dortmund set August 10 – the day they travelled to their pre-season training camp – as the deadline for a deal to be agreed but they are now ensconced in Bad Regaz in Switzerland with nothing in place.
That prompted Zorc to confidently announce Sancho would not be going anywhere, although some media outlets in the UK are reporting that a deal was still in the pipeline.
"We plan on having Jadon Sancho in our team this season, the decision is final. I think that answers all our questions," he told a press conference.
Negotiations appear to have been made more difficult by Zorc's revelation the 20-year-old's contract has three years left to run and not two as originally thought.
"Last summer we adjusted the salary to the performance development of Jadon. In this context, we have extended the contract until 2023," he said.
Dortmund have two matches during their training camp, against Austrian sides SCR Altach on Wednesday and Austria Vienna on Sunday.
They set the deadline for Sancho, who is under contract with them until 2022, because they want undisturbed preparation for the new Bundesliga season.
The new campaign starts on September 18, with the transfer deadline for international deals on October 5.
In an interview last week, Dortmund chief executive Hans-Joachim Watzke ruled out a transfer of Sancho once their training camp started.
On Monday, Zorc refused to discuss whether Dortmund had held talks with United about Sancho.
Red Devils manager Ole Gunnar Solskjaer admitted signing Sancho presented a significant challenge but refused to be drawn on their pursuit last week.
Asked how difficult, he said: "Well, we're looking into all transfers differently. I'm not going to speak about individuals that are not our players."
