Castore have made their move in the Premier League market after reportedly agreeing a deal to supply kits for Newcastle United.
The emerging UK sportswear brand made their first foray into the sport after they struck a £25million multi-year deal with Rangers earlier this year.
And now the company, founded by brothers Tom and Phil Beahon, will replace Puma as the Magpies' kit suppliers from next season onwards, according to Sportcal.
Rangers have had long-running court battles with former shareholder and current Newcastle owner, Mike Ashley, over a merchandising contract with Sports Direct.