"I'm worried, of course. You can't come off a defeat like that and the manner it was without being worried.
"I'm not going to criticise my players, I'm not going to criticise the team in any shape or form on an individual basis.
"It was a collective effort and we fell down collectively."
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Nigel Farage's former deputy Mr Nuttall says he's the only candidate who can rebuild and unify the party.
The 27-year-old was stabbed in Arthur's Hill, Newcastle on Monday and later died in hospital.
Newcastle get three points from the match and now three points clear at the top.