Some statistics are just so brilliant and surprising that they refuse to die and Petr Cech's dismissal penalty record at Arsenal is a fine example.

Every time the Gunners concede a spot kick, eyes turn to the ex-Chelsea man to see if he will finally keep somebody out from 12 yards at his new club. So far, that date and penalty has never arrived.

The 35-year-old has now stood up to 13 penalties in two seasons and eight games with every single one of them zipping past him, into the net.

Sergio Aguero was the latest man to expose Cech's achilles heel when he seemingly killed off Manchester City's clash with Arsenal on Sunday. Coupled with strikes from Kevin de Bruyne and Gabriel Jesus, the Citizens extended their lead at the top to a mighty eight points.

In fairness to the Arsenal number one, there was nothing he could do on this occasion with Aguero firing home via the post. 

Nevertheless, the De Bruyne strike did raise a debate as to whether Cech is somewhat past his sell-by date and if said penalty statistic is evidence to that.

Jamie Carragher argued the case on Super Sunday, determining: "I think he is one of the great goalkeepers in the Premier League but now he's just a good goalkeeper."

Interesting insight from the Sky Sports pundit but one Arsenal fan on Reddit has perhaps done some even better punditry when something about Cech clicked for them over the weekend.

It seems that the goalkeeper who once guessed correctly every time in a Champions League final penalty shootout, has completely lost his touch.

That's because, user Barkasia studied all 13 penalties that Cech faced and noticed that he only guessed correctly on three occasions and even that assessment is generous.

In fact, two of the three penalties he commended Cech for - taken by Harry Kane and Andre Gray - were placed down the middle with the Arsenal 'keeper only coming close thanks to his legs.

The only penalty he was truly fault-free for came on May 21, 2017, when Romelu Lukaku beat his adversary to their right-hand side despite being completely anticipated.

Luck? Coincidence? Maybe but from 13 penalties, to guess right just once is downright poor.

Furthermore, it comes in an era in which penalty analysis is more prevalent than ever with shot stoppers studying the tropes and traits of any striker they might face. Whether Cech has been slacking or reading too much into it is unknown but something needs to change.

Otherwise, when take a penalty against Arsenal, simply hit the target.

Who do you think is the best goalkeeper in the Premier League? Have your say in the comments section below.