These two sides have only ever met once in the League Cup, with Millwall prevailing 2-1 in Round 1 in August 2010. This was their last encounter in all competitions.
Wycombe are unbeaten in their last four trips to the New Den in all competitions (W2 D2).
The Lions have exited the League Cup only once in their last nine matches against sides from a lower division.
Since reaching the semi-final stage in 2006/07, Wycombe have made it past Round 1 just once.