Barnsley boss Simon Davey has hit out at Southend for unsettling striker Paul Hayes.
The Shrimpers lodged a bid for Hayes last Tuesday, just before the sides were due to meet in their FA Cup replay.
Although Barnsley shunned the offer, Davey opted against fielding Hayes in the club's weekend win at Luton Town.
The Tykes tactician insists no one will be leaving Oakwell unless the club's valuation of their players is met by interested parties.
"Southend United came in with an offer for Paul just hours before we were due to play them in the Cup," Davey told the club's official website.
"Their actions have unsettled Paul greatly - he is a Southend boy and has made no secret of his desire to move back down south over the last 12 months or so.
"Paul's mind was not right after they made their bid and it was in his best interests that he did not play at Luton.
"There is no way whatsoever that this club will allow Paul - or any player - to leave unless it is in the best interests of Barnsley."