Millwall and Leicester City shared a goalless first half at The New Den.
The visitors made the brighter start but failed to create any chances in the opening 15 minutes, despite their superiority in possession.
Millwall created the first real opportunity of the game, but Chris Wood placed his header wide of the target.
James Henry then tried his luck from outside the box but could only fire his effort past the post.
The Lions continued to enjoy the best of the chances, as Dany N'Guessan headed over the crossbar before Liam Trotter forced Foxes keeper Kasper Schmeichel into making a save.
Leicester then had a chance of their own, as David Nugent shot from an Anthony Knockaert free kick but David Forde made the save.
Forde was then called into action again moments later, as Danny Drinkwater turned a Knockaert corner goalwards but was denied by the hosts' keeper.
Millwall then went close through Mark Beevers, but he could only guide Henry's corner wide of goal.