Spurs are making £150 million available to Frank as he revives their summer move for Manchester City winger Savinho.
Porto’s Spain striker Samu Aghehowa is on Frank's shopping list as concerns over the long-term fitness of Dominic Solanke persist.
A new left-back is also on the agenda, with Destiny Udogie's fitness another issue under the microscope at Spurs.
Top of Frank's shortlist is Bournemouth ace Antoine Semenyo, though chances of Tottenham winning a crowded race for the Ghana international are remote.