The biggest challenge of the year awaits the Black & Gold on Saturday. Traveling to face the New England Revolution last weekend was the biggest challenge of the season for the Columbus Crew up to that point. Saturday marks a step up in competition. The Crew is back on the road on Saturday to take on New York City FC. Not only is City three points and five places in the Eastern Conference standings removed from the Revolution, but NYCFC is the defending MLS Cup champions. “I said it last year, even before they won the MLS Cup that I…