Jenkins insisted the player - who won the European Under 21 championships with Spain this summer and is known simply as 'Alvaro' - fitted the bill for the Swans regardless.
"First and foremost, we were looking to get in a striker. He fits the bill," the Swansea chairman told the South Wales Echo.
"We were looking for someone who will compliment the two we've got in Bony and Michu.
"Alvaro is the right age, he's young and has potential.
"We've known about him for a while. He was initially with Espanyol and then transferred over a year ago. We looked at the market and young players with potential.
"He's 6ft, strong, fast forward that Michael was looking for. He comes into that category. Hopefully he'll come and slot straight in and prove a good addition to the squad."
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