4 Players Arsenal should sell in the summer transfer window

#2 Laurent Koscielny

Chelsea v Arsenal - UEFA Europa League Final

Laurent Koscielny has gradually slipped into the shadows at the Emirates in recent seasons, going from being their star defender to making the occasional mediocre appearance at the back. From game to game, his involvement in matches is practically nil, and he doesn't seem able to stop the oncoming attackers as easily as he once could.

Safe to say that the 33-year-old is beyond his peak at this stage, and it would be wise for Arsenal to move him on while they can still get something for him. His market value is around £7m, and given his age, this is likely to fall rapidly, so the time to act should be now.

It is imperative that Arsenal start investing in younger, more agile defenders to bolster their backline, and stop clinging onto has-beens who contribute hardly anything to the first team. It's this negative attitude that has always held them back when challenging for the title.