Unlike outfield players, the majority of goalkeepers tend to peak during the early-to-mid thirties.
Some keepers, Gianluigi Buffon and Edwin van der Sar being two examples, are capable of producing world-class performances into their late-thirties and early-forties.
Petr Cech, arguably the best goalkeeper of the Premier League era, is now 35 but his best years appear to be behind him.
The former Czech Republic international, who won four league titles with Chelsea before signing for Arsenal in the summer of 2015, is no longer widely regarded as one of the best keepers in world football.
If you were to ask 100 football fans who the top goalkeepers in the world are at present, the majority would probably say Manuel Never, Thibaut Courtois and David de Gea.
Then they’d probably name the likes of Buffon, Marc-Andre ter Stegen, Jan Oblak, Keylor Navas and perhaps even Ederson, who has enjoyed an excellent start to his Manchester City career.
Cech's reputation isn't what it was
Cech’s reputation, on the other hand, has deteriorated over recent years - and he produced another unconvincing performance for Arsenal against Manchester City on Sunday afternoon.
Former Liverpool defender Jamie Carragher, speaking from the Sky Sports studio, gave his honest opinion about the keeper during the half-time interval.
Kevin De Bruyne had given City a 1-0 lead midway through the first-half with a low strike which found the bottom corner of the net.
And Carragher felt that Cech should have done much better.
"Petr Cech should save that," he said on Sky Sports.
Carragher: Cech is no longer a 'great' goalkeeper
Carragher then went on to say that, in his opinion, Cech has now been downgraded from a ‘great’ goalkeeper to just a ‘good’ goalkeeper.
"I think he is one of the great goalkeepers in the Premier League,” the Sky Sports pundit added, “but now he's just a good goalkeeper."
How Twitter reacted to Carragher's comment
A fair assessment - or a tad harsh?
Here’s how Twitter reacted to Carragher’s assessment…
Arsenal fans: should Petr Cech be sold next summer? Who should replace him? Have your say by leaving a comment below.
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