Liverpool suffered a 3-1 defeat at Newcastle on Saturday.
Hodgson told the club’s official website: “I was saddened and certainly angry with our performance because in recent weeks we have shown we are capable of playing good football and we were looking like a very solid and strong unit.
“We’ve had quite a long get-together with the team and everyone agreed with me that it was a performance way below our best and we can’t afford those type of performances.
“We know we have to improve our performances away from home. There is an element of confidence, we can’t deny that, but basically I don’t think we’ve been strong enough physically and strong enough mentally away from home.”
