Maikel Kieftenbeld's crisp blocked volley was a rare moment of quality in the first half, as chances at both ends were at a premium.

The result leaves Preston in 13th on 38 points, while Millwall move above Blackpool into 14th in the table on 37.

A cagey first half saw just three touches in the opposition box as both sides lacked a cutting edge.

Kieftenbeld's goal-bound volley was the standout moment - Scott Malone's corner headed away before the Dutchman crashed the ball with his right foot back towards goal, only for the effort to be deflected behind.

Millwall started the second half well and almost carved out an opening when Benik Afobe was put in behind the Preston defence by Danny McNamara's diagonal pass, but the striker's heavy first touch allowed goalkeeper Daniel Iversen to smother the effort.

Preston were then gifted a great chance to take the lead when Andrew Hughes went down under a challenge from Shaun Hutchinson in the Millwall area, with referee Kevin Friend pointing to the spot.

Whiteman stepped up and went to the goalkeeper's right, with goalkeeper Bartosz Bialkowski going the right way, but the ball struck the inside of the post and bounced back out to leave the score goalless.

Millwall manager Gary Rowett:

"A lack of goals is a concern, it does not take a genius to work that out. But good players cost a lot of money.

"Hopefully Luke [Freeman] can be a big influence. It's been a tough window.

"We've tried to change our approach and sometimes it is very difficult to get those players in."

Preston boss Ryan Lowe:

"We were outstanding, it was nearly the perfect away performance. There was only one team who might win it and that was us.

"We're disappointed not to be going home with three points.

"Ben will score more penalties than he will miss but we were dead worthy of the penalty. I'll never expect Ben to miss a penalty.

"It's a good point, not many teams will come here and get anything. Millwall were fantastic against West Brom and we know what they are about."