The Slovakia youth international joined Saints in the summer from Spartak Trnava in his homeland, and now puts pen to paper on a two-and-a-half-year contract at St Mary’s.



Kozák, who turns 17 today, is yet to appear for Craig Fleming’s Under-18s so far this season due to injury, but is nearing a return to fitness.



A physically imposing centre-back, Kozák is determined to make his mark after securing a dream move to the Premier League.



“I am very excited for this moment,” he said. “This was my dream from when I was 13 years old and I am very happy to sign for Southampton Football Club.

“My first impression was great, I felt very good with my school and my coaches. It changed my life.



“But after one month, I was injured for a long time and for me, that was a very hard moment.



“Now I feel good, so I think this moment has made me stronger. I believe I can be better than I was before.



“My dream is to play for the Southampton first team in the Premier League."

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