Port Adelaide defender Esava Ratugolea is facing 12 months on the sidelines after suffering a sickening knee injury in the Power’s 11.12 (78) to 6.16 (52) defeat to Collingwood. Ratugolea was rushed to hospital on Saturday night and will undergo immediate surgery on a suspected ruptured patella tendon. The 27-year-old was taken off on a stretcher after badly hurting his knee in a marking contest late in the third quarter. Jack Lukosius suffered …