Tottenham are offering to increase the add-ons to Swansea City in a late bid to seal the signing of Joe Rodon, Football Insider has learned.
In a new twist to discussions about luring the Wales centre-back, 22, to north London, Spurs have structured a deal with heftier top-up payments.
Tottenham have offered an initial fee of £8m plus £5m of add-ons, which is closer to the £15m in total Swansea are said to be willing to accept.
Multiple formulas have been discussed between the Premier League giants and Championship club in recent days.
Tottenham have also offered fringe stars to sweeten the transfer and get close to the £15m valuation mark.
Swansea have knocked back a number of suggestions including USA international Cameron Carter-Vickers.