Not sure how people always carry bias for their own teams players, its as bad as those who buy into the media bullshit pinned to players.
Johnson was the only one playing Mellberg onside, and it was clear to see. It was a mistake, and one of very few he made in the game so there's no need to cover it up and water it down by saying its not all his fault, it was, it happened and despite this big mistake he still managed to outperform most of the players on the pitch which is all the more impressive to me.

Terry is in line with the player closest to Johnson, remove Glen and its the ball played through to Mellberg, the flag being raised and the danger is gone.
We don't have to shift the blame anytime one of our players makes a mistake, bias in some ways is natural when a teams players are involved in certain situations in an international. When its black and white a mistake was a certain players fault accepting that doesn't make you a bad fan of your club.
To me Glens positives have far outweighed his negatives in the two games so far. He's made some wonderful recovering tackles and covered his teammates masking their mistakes a number of times, the Mellberg goal was Johnsons fault but it doesn't mean he hasn't been great so far.