Watford have completed the signing of Isaac Success from Granada for a club-record fee in the region of £12.5m, according to Sky sources.
The Nigerian has agreed a five-year contract and his arrival comes after Watford rejected a bid in the region of £20m from Premier League champions Leicester City for captain Troy Deeney last month.
The Hornets have also rejected a £37.5m bid from Shanghai SIPG for Deeney's strike partner Odion Ighalo, according to reports.
The 20-year-old Success was part of the Granada side that narrowly avoided relegation from La Liga last season, scoring six goals in 30 appearances.
Both clubs were owned by the Pozzo family until recently when Gino Pozzo sold his stake in the Spanish club to Link International Sports.
It is also understood Watford are close to completing the signing of Belgian centre-back Christian Kabasele from Genk.
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