Tino Livramento has announced he is leaving Chelsea.
Southampton are expected to sign the young wing-back.
And he posted to social media this morning: "After 10 amazing years of playing for the only club that I've supported since a child, I'm taking the next big step in my career.
"It's been a difficult decision, but I feel it's the right one to make at this stage of my development. Thank you for everything Chelsea."
Southampton have already snapped up Blues prospect Dynel Simeu in an estimated £1.5m deal earlier this summer.