The Argentine signed with Sampdoria on loan from Palermo on deadline day, having spurned the opportunity to extend his contract with the Rosanero.
As such his time at Marassi is expected to be limited to just six months, as once the summer rolls around Munoz will be a free agent able to sign with whomever he pleases.
The Hammers currently face an injury crisis at the back and needed Munoz immediately, though will also need to replace Winston Reid as he is set to depart in the summer.
Meanwhile, Spurs haven’t looked the most secure at the back this term, shipping 30 goals in 23 Premier League games as Younes Kaboul and Vlad Chiriches have been linked with departures.
Despite the double swoop for the pair, however, widespread reports in Italy – including from Tuttosport – have alleged that Munoz is set to join Milan in June.
This would rule out Tottenham and West Ham for returning for a defender available on a free transfer, as snapping up the 24-year-old at no cost would be a good bit of business.
But Munoz has now rubbished these claims, telling the Italian press that he is uncertain where his long-term future lies.
The Argentine said: “There are a lot of people saying I’ve already signed [with Milan]. It’s not true. We’ll see what happens in June.
“I came to Sampdoria to do well. I want to help the team. I found out on the last day of the transfer window about the possibility of coming here, and there was no doubt.”
This seemingly leaves West Ham and Tottenham free to move back in for Munoz, who is able to sign a pre-contract at this point.
His impressive displays for Palermo earlier this term as well as low wages – reportedly just €8,600 at present – should make Munoz an attractive option for the London duo.
Milan are likely to still threaten any ambitions they have of signing him, however, while Sampdoria looking to make his stay permanent can’t be entirely ruled out.
The Blucerchiati will probably lose Roma loanee Alessio Romagnoli in the summer, with fellow central defender Matias Silvestre also on loan with an uncertain future.
Sampdoria in turn will need reinforcements, and with Munoz already in the camp could have a leg up on Spurs and West Ham in the sweepstakes to secure his services full time.