Gallery: Millwall 1 Swans 2
See the best images from a thrilling trip to The Den as 10-man Swansea City claimed a memorable victory.
The Swans had Courtney Baker-Richardson sent off after five minutes and then fell behind to Murray Wallace's 62nd-minute goal.
But Kyle Naughton grabbed a 76th-minute equaliser before Oli McBurnie netted a dramatic late winner.