Tim Sherwood insists Erik Lamela will not be following Jermain Defoe out of Tottenham.
Spurs confirmed yesterday that Defoe had been sold to Toronto FC in a deal understood to be worth in excess of £8million.
Defoe, who has scored 142 goals for Tottenham over his two spells at the club, will move to Canada at the end of February, just before the start of the Major League Soccer season.
Lamela has also been linked with a move away from White Hart Lane in recent weeks. A loan move to Atletico Madrid has been mooted for the club-record signing, who has started just three Premier League games for Tottenham, but Sherwood will not let the 21-year-old leave.
"He won't be leaving on loan in this transfer window. He has a big future here, absolutely," the Tottenham manager said of the Argentina international.
"We know what a talented player Erik is. We also understand that players need time to settle.
"He needs time to acclimatise to this country. He doesn't speak English and he isn't used to the pace of the games, especially over the Christmas period when they come thick and fast.
"He is not 100 per cent fit either. He's still feeling fatigued in one of his thighs so we were very cautious with him.
"We are going to take it nice and steady with him. I really want to put him on the stage when he's ready to perform."
Defoe has recovered from a hamstring problem in time for today's London derby against Crystal Palace.
After Defoe departs, Spurs will be down to just two senior strikers in Emmanuel Adebayor and Roberto Soldado unless they can make additions this month.
The Londoners have been linked with a move for Juventus striker Mirko Vucinic in recent weeks, but Sherwood will see how his squad copes before making a decision regarding any new signings.
"Unless something happened drastically to one of those boys in the meantime we may act, but we've not got any intention to do that now," said Sherwood.