Julian Cash says it is “surreal” that he and Lloyd Glasspool have become the first all-British pair to secure the year-end world number one men’s doubles ranking.

Cash and Glasspool secured the accolade with victory over Germany’s Tim Putz and Kevin Krawietz at the ATP Finals in Turin – their 59th win of the year.

The Wimbledon champions had lost their first group match at the season-ending event but bounced back to beat Putz and Krawietz 7-6 (11-9) 6-2.

They will face Spain’s Marcel Granollers and Argentine Horacio Zeballos in their final match, with the winning pair advancing to the semi-finals.

Cash and Glasspool were presented with a trophy after their victory inside Inalpi Arena.

“It’s been one crazy year, that’s for sure,” Cash said.

“We put an awful lot of work in during the off-season and it takes a lot of people to get to this point.

“We have ticked off so many things this year and to be stood here now is surreal.”

Glasspool added: “It has been an incredible year. We put in a massive shift this year and it wouldn’t be possible without us both working really hard.”