The Croation international has been on the radar at White Hart Lane for some time, and reportedly failed a medical with Spurs during the January transfer window.
31-year-old Pletikosa currently plies his trade with Spartak Moscow in the Russian Premier League after spells with Hajduk Split and Shakhtar Donetsk. He made his move to Russia in 2007, and has made 63 appearances for Krasno-belye despite having long-standing injury problems.
Knee-ligament damage prevented the stopper from making his switch to the Premier League, but tests in Germany showed that the goalkeeper does not need further surgery on the injury, and will return to full training within a month.
The Croatian international has made 81 appearances for the national team and sits joint fourth on the list of all-time appearances for Slaven Bilić's side.
Speaking in the Daily Mail, Pletikosa was full of praise for the north London side.
"Spurs have shown me great respect and I can’t express my gratitude to Redknapp and his associates for the attention they have given to me," said the keeper.
"Unfortunately, it wasn’t realistic to complete the transfer to London this winter. We have agreed to renew talks before the summer and I hope that I will finally have better luck when it comes to England."
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