Rangers defender John Souttar is finally beginning to prove himself every inch the international defender the club hoped they’d signed from Hearts. The Scotland centre-back, 27, has been regarded as one of the nation’s strongest defensive options throughout his career and in recent weeks we’ve began to see why. After years of fitness issues, there’s renewed optimism that the defender can finally stay injury free and prove himself at Rangers. John Souttar drew Premier League bid Rangers are said to have held off competition from English Championship clubs like Stoke City and Blackburn Rovers to…