Wayne Rooney was in awe at what he saw from a former Manchester United target who once man-marked him, despite finding a potential weak spot in his style of play. The 38-year-old Manchester United and England legend had a remarkable playing career and is widely regarded as one of the best Premier League strikers of all time. Signed from Everton in 2004, Wayne Rooney thrived under iconic former United manager Sir Alex Ferguson and had a sensational impact at Old Trafford. During his time at Old Trafford, the former United striker surpassed fellow club legend Sir Bobby Charlton as the Red Devils…