How Arsenal’s starting XI will look in 2014/15 after a perfect transfer window including Casillas and Benzema

CB – Per Mertesacker

It finally seems as if the side’s defensive vulnerability of the past is being conquered, thanks largely to this German.

When Mertesacker arrived in 2011 there were concerns over the 29-year-old’s pace and mobility, but the centre-back has adapted his game to overcome those obstacles.