“On a personal level, I feel this is the best environment for me to continue my development,” Grady added.

“I’ve had some set-backs with injuries but feel like I’m getting back to my best and it’s about consistently improving and putting my game on the pitch.”

Cardiff head coach Corniel van Zyl said they were happy to keep an academy product at the club.

“He is a local boy who has come through the ranks and cares deeply about the club,” said the South African.

“He’s obviously had a few setbacks with injuries recently but he has come back from them well. There was a bit of expectation on him at the beginning, but he settled back nicely and has found some good form in recent weeks.

“His game is definitely growing, he is highly motivated to continue improving and we are excited to see where he can go.

“With his size, pace and power, he has an athletic ability and attributes that are rare in Wales, while his basics are improving every day.”