Firstly I feel sorry for Kelly because he's not a left back.
But he was uncomfortable from the first time he was attacked to the 73rd min when he was replaced by Fryers.
Exactly the same at Burnley when he was replaced by Fryers in the 59th min.
If he thinks Fryers is good enough to come on he should play him from the start. We'd be better balanced with a natural left footed player playing at left back. Fundamental error week in week out.