The Scottish ace has not managed to get back his place at the back after being out with an injury earlier in this season.
“It has been frustrating and annoying at times but you have got to put up with that and do the usual thing of get back to basics and you work hard in training and wait for your chance,” he told Sky Sports News.
“But it is very difficult to do that and not get upset but I have knuckled down and put in some good performances.
“Hopefully I have put myself in contention for this weekend (against Manchester City).
“There have been days when it has been difficult but I am a professional player and it is how you react and I hope to win my place back very soon.”
