Juande Ramos' reign at Tottenham Hotspur began with a rare double training session for the under-achieving players yesterday as the anger at his abrupt departure from Sevilla intensified. The Spanish club's president, Jose Maria del Nido, last night accused their former manager and Spurs of "treachery" and continued to consider reporting them to Fifa.

Ramos will be officially introduced at White Hart Lane this afternoon in readiness for tomorrow's visit of Blackpool in the English League Cup, though the Spanish club remain aggrieved and believe Spurs opened talks with their then manager without permission. That is backed up by photographs of the then Tottenham vice-chairman, Paul Kemsley, and club secretary John Alexander meeting the 53-year-old at a Seville hotel in August, with the Spanish club having anticipated Ramos completing the season.

Sevilla have also told Spurs that if they want to sign the full-back Daniel Alves they will have to meet the full €130 million buy-out clause in his contract, while they will have to stump up 25 million for the striker Freddie Kanoute

"I can assure you that we at Sevilla will pour all of our energy and all of our force into making sure that Tottenham pay the consequences of this situation, a situation that they have illegitimately provoked," said Del Nido. "We will do everything in our power and use all the means at our disposal to make sure of that. Here in Spain, we're not used to treachery existing between clubs. Nowhere in European football has something like this happened before with the season under way. I will leave it for Spurs and their fans to take a look at themselves and define their behaviour."

Of Alves and Kanoute, Del Nido added: "I doubt very much that Tottenham have the money to buy them. Tottenham will get the response from Sevilla that they deserve. And that response will be to channel all our energy into getting what we deserve after they have behaved the way they have behaved."

While Del Nido was on the offensive, Ramos was busy surveying his new squad as he took his first step towards improving overall fitness and hauling them away from the relegation zone. The Spaniard had been present as Spurs wilted late on against Blackburn on Sunday, with Christopher Samba's winner for the visitors the fifth last-minute concession endured by them this season. That late vulnerability has seen them surrender six points.

The new manager had briefly introduced himself to the players in the dressingroom in the aftermath of Sunday's loss and has now set about improving the side's fitness levels. He has been joined by the former Chelsea and Spurs midfielder Gus Poyet, previously Dennis Wise's assistant at Leeds United, who will also help with translation duties.

Senior figures within the squad have acknowledged that changes were needed to arrest Tottenham's decline and eradicate the late losses of concentration. "We lost in the last minute again against Blackburn, which has happened too much this season," said the captain Robbie Keane. "We need to rectify that. We have to stand up and be counted as a group. There is no other way."

The Dubliner has been one of the few players to impress this term, scoring eight goals in his last nine club appearances. "I'm looking forward to working with him," he added of Ramos.

"If he can bring the success, no one will complain. He obviously has a presence about him from what he's done before and what he's achieved. We have to draw a line under what's happened before. We have no choice."