Rangers legend Steven Davis has announced his retirement as the Northern Ireland and Ibrox hero officially hangs up his boots at the age of 39. Had it not been for a devastating cruciate ligament injury sustained in December 2022, we might well be talking about Davo leading our hunt for the title. But that injury has called time on an exceptional career which has elevated the status of Steven Davis to not only one of the greatest Rangers of the modern era, but also to one of the best British players of his generation. Indeed Rangers were lucky to have the boyhood Bluenose adorn their colours f…