"I'm 100 per cent confident. Every single player that we want to keep, I can assure you will be playing for Tottenham Hotspur next season," he asserted.
"Mauricio's strategy has always been that if an opportunity arises that he thinks can improve the squad then we will need to look at it, but January is always a difficult window."
The British businessman was referencing key players such as Harry Kane and Dele Alli, who have reportedly attracted interest from some of Europe's elite clubs, including Real Madrid. The London club has started informal negotiations with Alli about a contract extension and may have to do the same with star asset Kane in the coming weeks.
The interview took place as Levy was reviewing building work on Spurs' new 61,500-seat stadium, which could see Tottenham cement their status as a top European team. Their next fixture is at home to Everton in the Premier League on Saturday, with the squad currently three points behind fourth-placed Liverpool.