Cardiff could sell Greg Cunningham this summer amid interest from multiple Championship clubs, according to Football Insider.

He was signed by The Bluebirds only last summer but he featured just 11 times in the Premier League last season, and didn't threaten Joe Bennett's place in the side.

That means the club could choose to cash in on him if they feel the offer is right, which could be around £4m, given that is what it took to lure him away from Preston.

A decision to let him go would leave Cardiff with only one first-team left-back at the club, and with time running out in the window it may be a hasty decision to make.

If Bennett was to suffer a serious injury, Cunningham would be ideally placed to fill in, as he would be a more reliable option than an unknown player coming in, who would have to get used to the squad and what Warnock expects.

One aspect of Bennett's game which makes him the best option currently is his ability going forward, and that will be more important this season as Cardiff will look to dominate games more often than they did last season.

Last season Cunningham proved adequate in finding his teammates with passes, but in the final third he let himself down, and his crossing accuracy of 37% was not good enough. Crossing will be key to The Bluebirds following the arrival of Robert Glatzel, and due to his deficiency in this area Cunningham could be moved on.

However, Warnock likes an organised and effective defence, and that is where the 28-year-old comes in handy. He is a feisty and determined player and will never give up in his efforts to win the ball back or stop a cross coming in.

That was what made him stand-out at Preston, and he followed it up with an average of 5.2 interceptions per game last season, whilst winning 6.2 duels per game, on average.

The problem Cunningham has is that Bennett is as determined - it's a common trait for a Warnock player - but the former Villa man is also better on the ball and a better option when the side have to play their way out of trouble.

Possession is crucial in the Championship and by selling Cunningham, Warnock could bring in an attacking full-back who is better at retaining possession  - as Cunningham gave the ball away in his own half an average of six times last season, and that could prove costly for a team chasing promotion.

A pass accuracy of 74% is also underwhelming, although that should improve this season given Cunningham was playing in the top-tier for the first time last season.

Despite that, Cardiff should try and sell him. It is a waste to have someone of his value on the bench and the money they could gain from moving him on would be spent on a better replacement, or in other areas of the squad.