Swansea City's cool head and biggest challenge laid bare at Charlton Athletic as starlet proves he's ready

Swansea City concluded their pre-season schedule with a hard-fought 2-1 win over Charlton Athletic.

The Swans had to come from behind to defeat the Addicks after Harry Darling's own goal gave the hosts an early lead at The Valley. But Joel Piroe and Ryan Manning both struck in the second-half as Russell Martin's men tasted victory.

Here are the key talking points to emerge from the contest with the League One outfit in London.

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As early as the first few seconds of Swansea's opening day clash with Blackburn Rovers last year, the style shift at the club was evident.

Martin has regularly stated that there will be painful moments as players get to grips with his methods, and they conceded what was arguably the most calamitous goal of his reign to date in the win at Charlton. Harry Darling's pass back to Andy Fisher went straight into his own net following a miscommunication between the former MK Dons pair.

It typified just what can happen when the sharpness or focus isn't at its peak in this system. Fortunately, it happened in a pre-season fixture that ultimately had nothing riding on it which could make it something of a blessing in disguise ahead of the Championship opener at Rotherham United.

Players need to be bold and take risks for Martin's methods to work. As a result, mistakes will continue to be made, as Darling's howler highlighted. Eliminating those errors will be crucial though, particularly against Championship opposition, and one of the biggest challenges this season will be to stick to the principles, even when the going gets tough.

"There were a few too many scary moments in the first-half, but we are trying