In just over one week, Anthony Joshua will step foot into the ring for a career-defining fight.

On December 7, the Brit embarks on his revenge mission as he shares the ring once again with Andy Ruiz Jr, the Mexican underdog who defeated him on his American debut back in June.

It is being dubbed as one of the biggest rematches in heavyweight history, especially in the last decade or so, and all eyes will be on AJ and whether he can recover from his shock defeat just a few months ago.

Joshua went into that fight undefeated, and despite being tested and wobbled a few times beforehand, he was a dead cert to get past Ruiz Jr.

However, as we all know, that simply wasn't the case.

Rocked in round three with a brutal left hook to the head, AJ never recovered from that and eventually went on to lose the fight after a stoppage in round seven.

Fast forward to November, and with the fight just one week away, Joshua is looking healthy and unsurprisingly, big.

The 30-year-old has recently posted a picture of him in training to his official Instagram account, and one thing that has sprung to the attentions of many is just how big his legs are.

Take a look for yourself in the image below.

Now we all know AJ has the physique of an athlete, with many saying he resembles a bodybuilder more than a boxer, but the size of his leg muscles haven't gone unnoticed this time around.

But, having said this, Joshua looked in unreal condition for the first fight, and we all know what happened there.

It's not about physique or the muscle, it's about the style and the ability to get the fight won, which Andy Ruiz Jr did first time around.

Come December 7, we will finally know whether it's repeat or revenge, but one thing is for sure, Anthony Joshua once again looks in ridiculous condition going into fight night.