Why isn’t Mertesacker playing when Koscielny is sent off or injured?

Per Mertesacker needs to start playing By SK

Per Mertesacker got injured just before the beginning of this current campaign and ever since then, he has been in and out of the treatment room. However, from what I can gather from recent injury updates, Mertesacker is as fit as fiddle. But why has he not been playing? Wouldn’t he have been a better substitute for Koscielny whenever the Frenchman is not on the football pitch?

Per Mertesacker has won laurels with the Arsenal team and just some seasons ago, he and Koscielny were the second best defence in the league. But for a while now, he seems to have fallen down the pecking order at Arsenal. Why is this so?

Many will point to his lack of pace as a reason why he lost his shirt in the Arsenal team but what many have failed to realize, is that his maturity and experience, outweighs his lack of pace. The two games against Bayern Munich, where we lost scandalously, were the type of games we needed his experience. He would have coordinated the defence, calmed the nerves of the players and continually encourage dthe players to give their best in the game. That is why he is captain!

The BFG is a world cup winner; he knows what it takes to win trophies and such a player should not be on the bench if he is fit! Wenger probably needs to come out and tell us what we don’t know because I don’t really understand why the German is not playing. Or does somebody know what I don’t know?

Sylvester