Middlesbrough's bid for Rob Hulse has fallen through after they failed to agree personal terms, skysports.com understands.
The two clubs are believed to have thrashed out a deal worth over £3million for the 29-year-old striker.
However, it is understood that Hulse could not agree terms with Boro.
"Rob (Hulse) is staying with us and we are all absolutely delighted about it," said Derby chief Adam Pearson.
"One club in particular made very significant advances and we felt it was only fair to the player to keep him informed throughout the day.
"In the end Rob has decided that his future belongs here at Derby with Nigel Clough, as he and his staff look to build this team into one that can bring success.
"It has been an extremely productive transfer window for us, in shaping the squad to where we have wanted to be since the end of last season.
"We said at the end of last season we wanted to move out around 16 players and bring in 5 or 6 and this is what we have achieved.
"I'm sure Rob Hulse will go on to be a very important player for us and look forward to seeing him produce the quality of football he did last season, when he was our top scorer and player of the year.
"We all believe we have a very talented group of players now, which will grow together and improve over the season."
Gareth Southgate was anxious to bring in a striker and he will be desperately disappointed not to have secured his top target.
It remains to be seen whether Afonso Alves will complete his move to Qatar club Al Sadd.