Gary Rowett will have been left frustrated by the manner in which his side gifted Birmingham City a share of the points on Saturday, as Jake Clarke-Salter levelled the scores with just over 10 minutes left to play. 

Despite the result, Millwall have extended their run under Rowett to just one defeat in his first seven games in charge, as the Lions continue to improve after a relatively slow start to the campaign.

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Overall it was a solid away performance from the south Londoners, with Shaun Williams giving the New Den outfit the lead from some way out, giving Birmingham City keeper Connal Trueman no chance of saving the effort.

However, as referred to earlier, the Lions were unable to see out the victory, and as a result find themselves in thirteenth place after nineteen games gone.

Here, we take a look at THREE things we clearly learnt about Millwall following their draw away to Birmingham....

Improved attacking threat

Much of Millwall's good play throughout the contest came from their ability to make the most of the limited ball possession they had, with the Lions registering an impressive 11 shots and five on target throughout the 90 minutes.

The south Londoners will no doubt have been left feeling frustrated as they saw several key chances go a miss to take all three points, something that they will look to improve upon when they take on high-flying Nottingham Forest.

Jed Wallace crucial to the cause

The Millwall winger once again showed he is the club's key man, with the former Portsmouth winger once again causing havoc for the opposition as he laid on the assist for Shaun Williams to net the opener.

The 25-year-old's influence on proceedings was constant, with his forays down the right wing leading to many an attacking chance for his teammates, in what was an impressive performance from the wide man.

Defensive frailties exposed again

Rowett will have once again been left feeling overly disappointed after his side once again failed to keep a clean sheet, as the defensive frailties that plagued their draw with Wigan Athletic once again reared its head.

The fact that his side conceded from a set piece will surely grate on the ex-Derby County man, with the 45-year-old priding himself on having a team who is well organised from defensive situations.