I dont think England need to worry too much at the moment, that is if they can get the wicket early. The sun is out and its a good wicket to bat on, its not really doing much to be honest. We have seen poor shots from both teams batsmen and a few exceptional deliveries. They should back themselves to score.
But if these two bat like they are doing they could just demoralise and sap English energy by keeping them in the field. Hughes has done fantastically well considering his bad luck last time in England, he looks to have matured and buckled down. Agar has just been Amazing, 86 from 83 bowls. Take a bow son.
Whatever happens, its fascinating to watch.