Right before Colorado's goal, Brian Hall (who I think is gernerally the best and most consistant ref in MLS) whistled a foul at midfield. Kerry Zavagnin ran onto and played a ball, and then a Rapids player continued his run into KZ's leg. I don't know any ref who would have called that. Seemed non-existant. Then, the FK taker asks Hall to set 10 yrds on the wall, two Wizards defenders, which Hall does. As Hall is walking with his arm outstreched pushing the two wall players back, he has his back to the FK taker. Before Hall is finished setting the wall, a different FK taker runs onto the ball and plays it out to the left flank, which leads to a cross and a goal. Question is, doesn't the Referee have to whistle for the FK if he is setting the wall? Shouldn't Hall have called the FK back before the goal?