The 28-year-old has joined Valencia on loan with a view to a permanent deal.
“It was a tough job sealing the signing because Nelson is a highly-valued player at Rubin,” said Valencia’s sporting director Braulio Vazquez.
“He is a very important player for us because he is a forward who fits very well with the players we have.
“He has strength, commitment, speed and gets forward very well. He will also give us goals. We have a lot of confidence in him.”
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