Hull have succeeded in gaining a work permit for United States striker Jozy Altidore.
The 19-year-old last week agreed to join the Tigers on a season-long loan from Spanish side Villarreal.
On Monday that deal was finalised and Altidore will be available for Hull's Barclays Premier League campaign.
Altidore joined Villarreal a year ago after making his mark in Major League Soccer with New York Red Bulls, and impressed in the recent Confederations Cup.
His deal includes an option for Hull to make the deal permanent next summer.
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