Fuck that - we should be going at them.
Koscielny alone should be able to take care of Costa. While Costa may be in great form we shouldn't be running scared of him. I'm actually more concerned by Hazard right now as I don't know who from our midfield has the stamina/pace to track him.
But what we need to do - and too often don't - is get right at them from the start, and have Sanchez/Walcott/Ozil get a few of their players on yellows, and then go at them. Can't stand how we rarely challenge players who are on a yellow and I guarantee the statue that is Ivanovic and even Cahill could be on a yellow early if we look to exploit them.
As other's have said Ozil needs to step his game up here. Don't want to see him outplayed or with loose touches, he's the type of player that we need to have on his game if we're to have a chance.
------------Ospina-----------
Bellerin-Mustafi-Koscielny-Monreal
------Coquelin--Xhaka------- (to clog Hazard's route to goal)
-----------Ozil---------------
-Alexis---Perez-----Theo (to go at Ivanovic)