@Yankee_Jack Unlike Woodman, Hamer is excellent one-on-one. What I've read about him is that he can pull off some fantastic saves, but also make some schoolboy errors. You know, some players trive in some clubs, and look like clowns in others. Since he left Charlton, where he played regularly, he has mostly been a second choice goalie.
Huddersfield fans couldn't wait to see his back when it was announced he would be sent on loan to Derby, but, as you know, Huddersfield were terrible at defending in both the Premier League and later in the Championship. A shaky defences make most keepers shake.
Derby fans were angry with him for his howler in the last season's play-off game against Brentford, but such things can happen to the best goalkeepers in the world. Actually, I've seen worse errors from Buffon, De Gea, Neuer etc. Of course, Derby fans forgot how many times he had saved their ass. And why were they not angry with their defenders for the first and third Brentford goal?
Here is his howler: