Getty Images Wayne Rooney has said that former Manchester United midfielder Park Ji-sung was just as crucial to the club’s success as Cristiano Ronaldo, with the South Korean’s willingness to sacrifice himself for the team as a whole critical to lifting titles. Park and Ronaldo spent four years together at Old Trafford, winning three consecutive Premier League trophies, a League Cup and the Champions League in that time before the latter left the club for Real Madrid in 2009. And while Ronaldo’s goals, skills, speed and trickery will always be at the top of the highlight reel when looking back at that side, Rooney feels that Park’s contributions were just as important as that of the Portuguese icon. “It’s crazy but if you mentioned Cristiano Ronaldo to a 12-year-old, they would immediately...