DAVID Wagner admitted his Norwich players “lost their heads” after being hammered by Boro. The Canaries were fuming that the game wasn’t stopped in the build-up to Boro’s second goal when Sam McCallum was down injured. They were also denied a penalty when Max Aarons appeared to be fouled in the second half. However, Wagner didn’t make any excuses for the heavy defeat. He said: “It was very disappointing. I think we made a lot of horrendous mistakes in front of both goals. We had some good opportunities at 0-0 and at 1-0 down we had an opp...