Tom and Phil Beahon, who founded Castore in Liverpool four years ago, say they want to partner with five leading football clubs across Europe in the next 10 months. “All these clubs will be challengers, who are perceived externally as underdogs but who themselves relish the battle and have both the belief and expectation that they will be successful,” they said, announcing a new sponsorship deal with the Rangers, the football club based in Glasgow that plays in the Scottish Premiership. The new five-year deal, which is reportedly worth £20 million (€22.4m-$24.5m), is set to start with the 2020/21 season. The team was previously sponsored by Hummel. Castore is said to be backed by strong investors including one of the wealthiest British families. Andy Murray, the Scottish tennis star, became an investor in the brand last year.