Rafael Nadal has had somewhat of a resurgence this year, claiming important Open wins in France and the US has seen him return to the top of the pile in the official ATP world rankings.

Many will know Nadal as a formidable tennis player, but one who is at his most formidable on one type of surface, clay.

Nadal has been the master of clay for over a decade, even when moving in and out of form, his classy performances on clay still remained. So much so that in April, Nadal broke the record for the highest number of titles won on clay by a single tennis player, a record he still holds (53).

Nadal is the holder of many records, many of which are related to his success on clay. However there is one record he holds that he will want to be rid of. Nadal has never won in the ATP Tour Finals.

A competition he does not feel he has won because, you guessed it, the finals are not played on clay. They are in fact played on a hard surface, and always have been.

Despite voicing these concerns once again, Nadal hasn't found much support. With tennis legend Pat Cash the latest to openly disagree with the Spaniard's claims.

"Numerous are the times I have heard Rafa complain that he isn't given a fair chance of winning the ATP Finals because they are always played on indoor hard courts," Cash said, per The Express. 

"Well I'm afraid that's just the way things are and it wouldn't be fair on the other seven guys because they have all been playing on hard courts since well before the US Open.

"You can't just switch surface like that with no time to transition and with injuries being so prevalent in the game at the moment, a lot of people would get hurt going back to clay for just one week."

He continued to applaud Nadal and his contribution to the sport, but cannot help there is one area he is missing:

"I praise Rafael Nadal, I applaud all his achievements but cannot help but think, when he finally quits, there will be a big gap in his record."

With the upcoming finals lacking many big names, Cash feels that Nadal's presence will benefit the tournament as fans may have felt "short-changed" otherwise.

Cash continued: "Credit to Nadal for giving it a go at London this year. Without him in attendance, many of those who paid out for their tickets several months ago would certainly be justified in thinking they were getting short-changed with so many big names absent."