Lions boss Chopper previews Monday's game at Roots Hall
Millwall boss Neil Harris is looking for The Lions to rediscover their scoring touch against Southend United on Monday (1pm).
Chopper's men have failed to hit the back of the net in their last two League games - defeats to Gillingham and Walsall.
And the Millwall manager concedes that his side need to find their composure and confidence again at Roots Hall, which was the scene of his side's Johnstone's Paint Trophy Area Semi-Final success earlier this month.
"We know that it's a tough place to go," Harris insisted.
"They had a good win on Saturday so their tails will be up and they are on a good run.
"We are disappointed at what happened against Walsall but there will be no need to pick the boys up - they are a great group of lads who are desperate to do well and succeed.
"We've got to find our composure on the football and our confidence again, as well as getting back to scoring goals.
"We had no Lee Gregory on Saturday with a tight hamstring so we have to see how long he is going to be out. Aiden (O'Brien) has not scored for a few games and Steve (Morison) last scored at Southend in the Johnstone's Paint Trophy, but we talk about goals all over the pitch. Centre-halves were chipping in with goals at the start of the season and that makes a big difference also.
"It's not just down to forward players because everybody is involved in scoring goals."
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