In the worst ever signing chat, I'd really have to say it's Drinkwater. Players like Bowery and Tonev were utterly dreadful of course, but they were cheap punts. What makes Drinkwater the clear winner for me though:
1) Anybody with half a brain could see it was going to be a disaster. Hadn't played for two years, mostly due to injuries received from getting beaten up for being a twat.
2) His actual performances were dire as well, and made us worse on the pitch.
3) He's a real wrong 'un with a terrible attitude, as shown by butting his own teammate Jota in training. A player obviously much smaller and less physical than him, which marks him as a coward and a bully. Extra c*** marks for thinking that a Google translate apology was suitable.
4) Rumoured wages of £100K a week we were paying.