Birmingham City spoiled Charlton’s celebrations of 100 years at The Valley as 16-year-old Jude Bellingham ended their unbeaten start to life back in the Championship.

The teenager’s 52nd-minute strike proved to be the only goal of the game, while Lee Bowyer was shown a straight red card during six minutes of added time.

Charlton, who were the first newly promoted team to go unbeaten in their first six games since Brighton in 2011, travel to Wigan Athletic next.

READ: Player ratings from Charlton 0 Birmingham 1

Here are five things we learned…

Why did David Davis not see red, too?

Tensions appeared to boil over during the final stages of the Charlton-Birmingham clash, with officials adding on six additional minutes.

A key decision that officials appeared to miss - or decide against - was sending off Birmingham's David Davis.

The midfielder was booked only several minutes earlier for his run-in with Jason Pearce before he committed another foul - he should have been sent off.

Taylor-less Charlton must be more clinical without their star striker

Something the Addicks will rue is how wasteful they were in front of goal given how few of their shots hit the target.

The stats show just three of Charlton's 12 shot attempts were on target - two of which were in the final 20 minutes.

Although Birmingham defended solidly for large periods, and the chances were not always clear-cut, they need to execute better if they are to compensate for Taylor's absence.

READ: Birmingham boss Pep Clotet gives his side after Bowyer sees red

Next man up

He was hit-and-miss but, for a striker still regaining full match fitness, Tomer Hemed gave a good account of himself.

The former Brighton striker has big boots to fill while Taylor recovers from his knee injury, and a lot will be expected of him.

Hemed will surely be keen to rise to the occasion but it may take a little while for him to get up to speed.

Impressive once again

Consider this: before this season, 19-year-old Conor Gallagher had never played a minute of senior, first-team football.

A month into his Charlton loan spell, he has three goals and two assists from seven games. That is some return.

His performance against Birmingham showed there is still more work to be done but his work rate was outstanding.

READ: Bowyer explains red card incident against Birmingham - his post-match thoughts in full

Birmingham was a bit of a reality check - but Wigan away will be interesting

The six-game streak had to end at some point - no one likes losing but it might not be too much of a momentum killer.

Now attention turns to out-of-form Wigan who have not won since opening day, having gone seven games without a win in all competitions.

This may be the first time Charlton have been considered quite strong favourites to win a league game this season. How they navigate a Latics side itching to get back on track will be intriguing to watch.