Full-time score from Florence Park
A 73rd-minute goal from trialist Adam Edgar kept Millwall in the hunt for a top two finish as the young Lions edged to a narrow Professional Elite Development victory against Colchester United on Thursday afternoon.
Millwall, featuring another trialist in the shape of Josh Wisson, got off to a promising start and found themselves a goal ahead with just 12 minutes on the clock. Left-back Noah Chesmain's mazy run deep into the danger zone was brought to an abrupt halt when he was brought down.
Up stepped Kyron Farrell to calmly slot home the resulting spot-kick to score his first goal for the Under 21s this season.
Thereafter The Lions enjoyed a significant amount of territorial advantage, but found clear scoring opportunities limited to test James Bransgrove in the home goal.
It was The U's who grabbed a slightly fortuitous leveller four minutes before half-time when Chris Regis capitalised on a defensive slip to fire a low past visiting keeper Harry Girling.
In a keenly contested match, Justin Skinner's charges clinched an impressive second win in four days when Edgar smashed home an unstoppable shot from close range to secure the points.
Millwall: Girling, Brown, Chesmain, Wisson, Bray, Mbulu, Donovan, Farrell, Edgar, Leigton, White. Subs: Sandford, McNamara, Ebuzoeme.