While Sheffield Wednesday have finished in the play-off places in the past two seasons, Carlos Carvalhal may feel that he has now built a side capable of gunning for automatic promotion next season.

Despite having one of the strongest squads in the entire division, the summer transfer window could still prove to be of vital importance for Carlos Carvalhal and his South Yorkshire side.

One area that Carvalhal feels that Sheffield Wednesday needs to add further strength and depth to is the centre-back position.

Already Sheffield Wednesday have been linked with a move for Middlesbrough's Daniel Ayala and Newcastle United's Grant Hanley.

However, rather than moving for these centre-halves who have struggled for playing time and regular first team opportunities at their respective clubs, one player who may be a better signing for Sheffield Wednesday is Chelsea's highly-rated centre-back Tomas Kalas.

The Czech Republic international has spent the past two seasons on loan in the Championship at Middlesbrough and Fulham which has seen him accumulate over seventy appearances at the Championship level.

Considering that Middlesbrough gained promotion to the Premier League with Kalas an integral part of their defence and Fulham also surprisingly reached the play-offs with Kalas proving to be a key player in their side, the 24-year-old centre half has shown that he is capable of performing to a high level in a promotion-challenging Championship side.

As Tom Lees primarily operates in the left centre-back role, Tomas Kalas would slot in perfectly beside him to create what looks like one of the strongest centre-back partnerships in the Championship on paper.

Although Hull City currently lead the chase for the Czech centre-half, Sheffield Wednesday have shown over the past two seasons that they have the financial clout to compete with the vast majority of sides in the Championship.

If he does become available, Sheffield Wednesday should move quickly for this highly-rated centre half.

Sheffield Wednesday fans - would you like to see Tomas Kalas join your side? Would he be the solution to your centre-half problems? Do you think a Lees-Kalas partnership would be a success? Let us hear your thoughts and opinions in the comment section below!