Right now there are only two players I'd recommend as starters to a Premier League, La Liga, Bundesliga or Serie A club: Hiroshi Kiyotake and Hiroki Sakai.
With regards to Sakai, he is strong, he is quick, he doesn't have any noticeable defensive frailties and he has a motor.
He will run up and down that right flank the entire game.
Hannover are set to sign him for €1 million, according to Goal.com.
If this deal does go through, the German club see Sakai as the successor to Steve Cherundolo.
Sakai is a better player than Cherundolo right now, but the Japanese right-back will need to bring it in training to replace the American iron man.
With Bacary Sagna out for the foreseeable future (get better, Bacary), Arsenal should hijack Hannover's deal with Sakai, just like they did when they stole Park Chu-Young from Lille.
Please read Why United Shouldn't Sign Kagawa.