THE Sharks powered into the European Challenge Cup semi-finals with a 36-30 comeback win over Edinburgh at Kings Park in Durban yesterday. The forwards stepped up in the second half and gave the side brilliant front-foot ball to pull away.Independent Newspapers rate the performance of the Sharks players.15. Aphelele Fassi (7.5/10): Responsible for the tackle that gave the Sharks a penalty after chasing down a good kick. His boot is worth gold.14. Werner Kok (8): Good in the air, solid on defence and his engine never stops working. Almost scored a good try.13. Lukhanyo Am (8.5): Looked…