Totttenham is planning trips for Watford goalkeeper Ben Foster and Manchester United defender Chris Smalling this summer.
Spurs boss Jose Mourinho is keen to strengthen his team and, according to The Sun, has identified Foster, 36, as the man who can compete with Hugo Lloris in his ranks.
The former Manchester United glove man has been an outstanding performer for the Hornets this season, but has no contract this summer – although he has the option of a one-year extension at Vicarage Road.
Italian reports earlier this month also said Mourinho wanted to bring defender United Smalling to Tottenham Hotspur stadium when his impressive loan to Roma ended at the end of the season.
Serie A wants to sign the 30-year-old permanently, but will have to push back competition from Spurs and Everton, who are also monitoring the situation of the central defender before the summer transfer window.
Ole Gunnar Solskjaer is believed to not see Smalling in his long-term plans and would be willing to listen to the offers for him.
Old Trafford chief Ed Woodward values the English international at 31 caps at around £ 16.5 million, his current contract expiring in 2022.
Mourinho and Spurs are currently preparing for life without Jan Vertonghen, who fails to sign a new agreement at the club.
The Portuguese boss worked with Smalling at United between 2016 and 2018 and thinks that he will add essential experience and quality to his rear line.