We should be looking at a 4-4-2 / 4-4-1 formation this weekend.
countering the 3-4-3 is tricky, but the way to beat it will be using the fullbacks to carry the ball forward.
Hazard and Pedro will not follow their runners all the way back, we need to use link up play down the flanks as that's where the space will be.
When defending keeping a narrow back 4, with the wingers man marking the wing backs is the best way forward. Let Pogba/Herrera close Matic/Kante, the 2CB will need to keep busy with Costa.
When Hazard goes roaming IMO Valencia should man mark him. If we let him drop into the space behind midfield he will cause us havoc.