Goal revealed on Sunday that the north London outfit are set to pay the striker's release clause of €30 million (£25.9m) following a phone call between Spurs' technical director, Franco Baldini, and Salvo.
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"The agreement with Tottenham is total," Salvo is quoted as saying by Las Provincias.
However, the Che chief has admitted that the switch will not be completed until issues involving Soldado's representatives have been resolved.
"A problem with the agents has emerged," he added. "[Once resolved] he will go."
Elsewhere, Tottenham centre-back Bongani Khumalo has joined Championship side Doncaster Rovers on a season-long loan.
The South Africa international spent last term at Greek side PAOK. This will be his third spell in England following stints at Preston and Reading.