Millwall raced into a two-goal lead against Queens Park Rangers at The Den, with Mazou-Sacko striking in the third minute and Neghli adding a second 14 minutes later.
The opening spell left QPR with a steep climb almost from the start, but the visitors responded with determination after the early setback and kept pushing to get back into the match.
Neghli nearly made it 3-0 when his lofted effort went just over the bar, a warning that Millwall were still carrying the greater threat in the early exchanges. This was only the front edge of the contest, not the final word on it, but the first 17 minutes gave the home side the cushion they wanted and forced QPR to chase the game at The Den.
The lineups also underlined that this was a properly framed league meeting, with starters and benches named for both sides before kickoff. For Millwall, the fast start was decisive; for QPR, the next phase was about settling after the shock and finding a way to make the scoreline reflect the effort they were already putting in.