Chopper bemoans set-piece failings after third straight home defeatNeil Harris couldn't hide his disappointment after watching his side concede an injury-time goal as Barnsley won 3-2 at The Den on Tuesday night.
Fred Onyedinma scored his first two senior goals for The Lions but it wasn't enough for Chopper's side as The Tykes secured all three points thanks to strikes from Sam Winnall, Alfie Mawson and Lewin Nyatanga.
It was Millwall's third home defeat within a week and Harris was angry about the way in which his side let in the three goals.
"You can't concede three times from set-pieces like we have done tonight," he said.
"Seven goals conceded in two League games at home just isn't good enough.
"We're gutted. After Saturday we were hoping for a performance and a result but overall it wasn't great.
"I've left my players in no uncertain terms as to my disappointment. Character wise they have to be better.
"Maybe we do need some new ones. I've asked some of the group to go away and think about if they want to play for this club.
"Now we have to focus on picking ourselves up for Saturday. Scunthorpe will be tough but the players owe me a performance."
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