Virgil van Dijk claims he knows nothing of interest from English clubs and is keen to prove himself in the Champions League with Celtic.
QPR loanee Tom Carroll wants to "make it at Tottenham" but is prepared to consider all of his options at the end of the season.
Stoke winger Brek Shea has joined Barnsley on an emergency loan, the Barclays Premier League club have confirmed.
United States international Shea will spend 28 days with the Tykes, who are in the Sky Bet Championship relegation zone.
The 23-year-old has made only five appearances for the Potters since signing for them from FC Dallas in January 2013.