So far good addition with both player. Park and Santos has wise experience playing in top level and both also represent their country in highest level.

Mikel Arteta is good enough. Need some space for Wilshere, Ramsey, Song and Frimpong to continue their progress. From my view, these 4 players seems very loyal to the club. One day they will prove to be good for the team.

He's still 19.. you can call that a 'kid'. Just let him enjoy with his social networking like every teenager. I see no problem with that.

Chris Murphy is an avid Newcastle United fan.

Santos is very likely the 1st choice LB. About Mertesacker, let see how he cope with EPL first. I'm sure Wenger will not rush him into the action yet. He's tall but quite slow. Maybe Arsenal can stop playing high defensive line when he's around. Koscielny and him will battle for the CB spot. Vermaelen is already guaranteed starter.

Suddenly so many captain in Arsenal squad...

So far i'm really satisfied with all the signings. They all are proven in their respective role and has good resume and achievement to back it up. The risk and gamble still there... but at least this time they all are establish player.

Santos is Brazil senior squad left-back. So he must have great quality to featured in Brazil squad, not an average player at all. Should be a very exciting player. I can't believe some people branded him as average / not good enough player just because the media doesn't hype him/ his rating on video games isn't or par with those star-studded name / he is not AAA name / they didn't recognize his name before.