Cardiff City manager Neil Warnock has admitted that his club's transfer business in the summer was frustrating and insisted that he will buy reinforcements in the January window.

The Bluebirds splashed £27m over the summer on the likes of Josh Murphy, Bobby Reid and Alex Smithies, while securing loan deals for midfielders Harry Arter and Victor Camarasa.

Despite surpassing their highest-ever net spend, Warnock believes that more players are needed to maximise the potential of his Premier League squad.

"The Championship is a tough league but I think we've all learned something about the Premier League already," Warnock told Wales Online.

"It takes a lot of money and we probably left our main transfer targets a little bit late really. It's not like the Championship when you can wait until the end of August, and we found ourselves trying to sign two midfielders right before the transfer day cut-off and we didn't manage to get the striker in. Last summer was about as difficult a summer as I've had in my career - and I've had quite a few summers!

"We do need two or three quality players to add to the current squad. We need more goal threat from the strikers. I've been disappointed to concede goals at the back but I thought we might have got more from the strike force this season. I think there will be money to spend. We know we need these players now, three to four quality players. It might be a bit of wheeling or dealing, we might need to sell someone or a part exchange or something. That will be the situation in January."

Cardiff sit 19th in the Premier League table, only picking up two points in their opening seven games.