Sunderland defender Dennis Cirkin ought to pay very close attention to some recent comments from sporting director Kristjaan Speakman. Cirkin is almost a forgotten man within this Sunderland side. The former Spurs talent joined the club for their final season in League One and helped get the Black Cats across the line. Very quickly, Sunderland realised that they had a promising and reliable full-back on their hands in Cirkin. The 21-year-old featured 37 times in the promotion-winning 2021/22 season and then played 28 times in the Championship last season, scoring an impressive five goals and b…