Welsh Midfielder Joins Vale On Month-Long Deal
The 20-year-old, who has made three first team appearances for the Bluebirds, is expected join up with the Valiants for training on Tuesday morning.
A Wales under-21 international, O’Sullivan came through the academy at Sky Bet Championship side Cardiff and is a creative midfielder.
Vale boss Rob Page believes the youngster is an exciting prospect and is delighted to have secured his signature.
He told port-vale.co.uk: “I know Tommy well from the Welsh youth set-up, from the under-19s and under-21s.
"He has shown potential at Cardiff and he's a great addition to the squad who is going to come in and push for a place in the team.
"With Louis Dodds out with injury it's nice to bring someone in who is similar in style as a creative midfielder."
Keep an eye on the club’s official website for a full and exclusive interview with Tommy O’Sullivan in the coming days.