Birmingham manager Alex McLeish has stressed the need for on-loan goalkeeper Joe Hart to cut out mistakes if he is to force his way into Fabio Capello's England World Cup squad.
Hart has made the temporary switch to Blues from Manchester City for this season to play regular first-team football as he looks to become a regular member of the England set-up. He has been prone to the occasional error with the latest gifting Sunderland a goal at St Andrew's on Saturday when he came for a free-kick but was beaten to the ball by Michael Turner, although it did not prove costly as Birmingham held on for a 2-1 victory.
McLeish said: "Joe had a lack of action in the game and goalkeepers sometimes get a bit impetuous."
He added: "Joe maybe came into an area where he didn't need to come (for the free-kick).
"It is just typical of a 'keeper that they feel 'I've got to do something and get involved.'
"He is disappointed. He beats himself up. He really cares but he knows these mistakes in the Premier League are highlighted.
"If he is going to go to the World Cup with England, he has got to improve on that side of things."
Hart will be ineligible to face his parent club at St Andrew's on Sunday when last season's number one Maik Taylor will return between the posts.