Cardiff City Football Club are delighted to announce the signing of Jonny Williams, subject to international clearance.
The Welsh international midfielder joins the Bluebirds for an undisclosed fee.
CARDIFF CITY TV | JONNY WILLIAMS SIGNS
Speaking after Jonny put pen to paper at CCS, Mick McCarthy said: "I think it is one of the best deals of the transfer window. Especially late on, we've managed to get Jonny Williams in.
"I worked with him at Ipswich. He was fabulous. He brings a smile to the place. He's very, very talented and he's Welsh, of course.
"He's delighted to be here. If he can play to his ability, then he'll rip it up."
Jonny added: "I'm delighted. I'm really looking forward to working with the Gaffer and TC again.
"They're great. I think I played the best football of my career under them at Ipswich. They gave me the belief and freedom to express myself.
"I'm going to give it my best. Hopefully I can score some goals and assist. The main aim is that we win games.
"That's what I've come here to do. To win as many games as I can in a Cardiff City shirt. I can't wait to get started."
Having graduated through the Crystal Palace academy, Jonny made a total of 70 appearances for the Eagles in all competitions.
He linked up with Mick McCarthy in loan spells at Ipswich Town, also spending time with Nottingham Forest, MK Dons and Sunderland, before joining Charlton Athletic permanently in 2019.
A 25-cap Wales international, the midfielder netted a late winner for his country away to Bulgaria in this season's UEFA Nations League.
Watch Jonny's first interview as a Bluebird on Cardiff City TV.