The Chicago Bears got through their first day of rookie minicamp at a high tempo in the Walter Payton Center at Halas Hall and the top two picks looked as athletic as billed. First-round draft pick Kyle Long, working at right guard, was fluid and moved well, easily getting to the second level on plays. It’s impossible to tell too much with line play when the players are not wearing pads, but he moved as well as you would expect an athletic offensive tackle. Second-round pick Jon Bostic lined up at middle linebacker and his speed and range were evident. His 6-1, 245-pound frame makes him look a lot like weak-side linebacker Lance Briggs. In all, 59 players were on the field. Six draft picks, nine undrafted rookie free agents, 10 veteran players that do not have a vested season of credit, kicker Austin Signor, signed last month, and 33 tryout players. The Bears announced after the draft that they would sign Rutgers wide receiver Mark Harrison but he failed his physical and was not given a contract. Harrison is recovering from a broken fifth metatarsal that he had surgically repaired two months ago. The Bears will re-visit him when he is healed up but his absence means only 89 players are on the roster. Long was excited to get to work two weeks after being selected 20th overall. “It was awesome,” he said. “It’s good to get to know all the guys, all the incoming guys, a few of the guys from last year are out here. It’s a great experience. (I want to) just continue to try to earn the respect of teammates and coaches, just try to solidify my knowledge of this offense and get more and more reps.” Trestman called it an “exciting day” also as the Bears introduced some players they hope will be building blocks for seasons to come to their playbook and the way they approach work on the field. “As coaches we recognize the magnitude of this day for players, whether they were drafted, undrafted free agents, whatever they might be,” Trestman said. “This is a dream come true for them to be on an NFL service. We were happy to be a part of their first day and to bring them along. Just like our first minicamp what we tried to do today was spend time in meetings specifically teaching them how we want to pracitce. And I think you could get a sense for that out here: their movement and their speed. We were less concerned with their assignments because they just got here.