By Chris Smith LAFC became the 15th team to win MLS Cup with a 3-0 penalty shootout victory over the Philadelphia Union on Saturday. Over an incredible 120 minutes of soccer, the Black and Gold were twice pushed back after taking the lead before snatching a shootout in the final moments through none other than Gareth Bale. Banc of California Stadium held its breath. Back-up goalkeeper John McCarthy – who came in late for the injured and red-carded Maxime Crepeau – earned his place in LAFC folklore with two saves against his hometown club, while Denis Bouanga, Ryan Hollingshead, and Ilie Sanche…