Gordon Strachan has claimed that one Manchester United legend was the “perfect” signing for Sir Alex Ferguson during the Scotsman’s legendary reign at Old Trafford. The 67-year-old played under Sir Alex Ferguson at Aberdeen and Manchester United, with Gordon Strachan previously holding a famous rivalry with his fellow Scotsman. Strachan, who later clashed with Ferguson when he became a manager, played at Old Trafford during the 1980s before signing for United’s rivals Leeds in 1989. The former Red Devils and Aberdeen player was at Leeds United when United legend Eric Cantona first arrived in E…