Seen loads of absolute shite over the years but most of them were just bad signings and were decent where they played before us.
The one that really stands out for me though for being absolutely overrated was David Seaman. Incredibly, he was was far worse than Bravo who's the 2nd worse keeper I've ever seen.
Seaman came as a 'legend', title winner with Arsenal and England keeper. I genuinely just remember him looking like a guy from the crowd playing in net. He looked old or like he didn't warm up. He had no presence and I just don't remember him touching the ball apart from picking it up from the net. It made me realise how much work Adams, Bould, Winterburn and Dixon had to do to keep the ball away from that useless fucker.
At least he had the decency to retire as soon as he got an injury mind.