Arsenal defender Mertesacker up for clash with Chelsea's Demba Ba

Arsenal defender Per Mertesacker is ready to face Chelsea striker Demba Ba today. He will today come face-to-face with an old foe from the Bundesliga in Ba.

Arsenal defender Per Mertesacker is ready to face Chelsea striker Demba Ba today.

He will today come face-to-face with an old foe from the Bundesliga in Ba.

Mertesacker said: “I have played against him in the Bundesliga. He did well at Hoffenheim.

“He is very compact, physically strong and quick. He is always a threat. We must not focus on one player, though. We must take care of our defensive level.”

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