PHILADELPHIA — Inside the visiting clubhouse at Citizens Bank Park, they know the stars of Major League Baseball by their cheesesteak orders. Atlanta Braves ace Chris Sale wants a chicken cheesesteak with extra cheese and extra banana peppers the day after he makes a start.“I think he eats two,” said Eric Michaels, a clubhouse attendant who is usually on the grill.“That’s right,” John Zawislak, another clubbie, said. “He got two last time.”When CJ Abrams arrives, they already know what the Washington Nationals shortstop wants: a chicken classic cheesesteak with extra cheese. That’s the pregame order. After every game here, Abrams will have a regular cheesesteak waiting for him.“Some of these NL guys,” clubhouse attendant Jacob Stong said, “we’ve seen them walk through the door and we’re already on that grill.”Wait. Two cheesesteaks every game here?“I don’t know,” Abrams said. “The cheese is just melted perfectly. It’s good. It’s just good.”The festivities surrounding the 96th All-Star Game — the first one at Citizens Bank Park — highlighted how well the 22-year-old ballpark has aged. Opposing players rave about the atmosphere, how it’s one of the most enjoyable places to play because the blue seats are almost always full. The fans are passionate. The competition is usually good.But there is a not-so-secret reason many of MLB’s visiting players enjoy a trip to South Philly. The All-Stars are eating cheesesteaks this week.“It’s good,” Kansas City Royals starter Michael Wacha said, “to have a little cheat meal every now and then.”Every MLB team travels with at least one nutritionist, a requirement stipulated in the collective bargaining agreement. Teams spend hundreds of thousands of dollars a year to feed their players the highest cuisine. On the road, visiting teams are typically responsible for arranging catering. Some ballparks offer trained chefs in the visiting clubhouses.The Phillies have a bunch of guys who know how to work a grill. Their cheesesteak is regarded as one of the best in the city, as proclaimed not just by visitors but also some local employees who have conducted their own unscientific research. The clubhouse staff, Michaels estimated, makes at least 35 cheesesteaks on a regular-season gameday. With an American League team that comes to Citizens Bank Park only every other year, that number swells to 50. Word of mouth, in this sport, is strong.CJ Abrams gets two cheesesteaks a game every time the Nationals come to Citizens Bank Park. (Daniel Shirey / MLB Photos via Getty Images)There is a competitive element. For years, players have offered bounties to staff members to take a run at eating as many cheesesteaks as possible during a three-game series here. That’s one thing; ballplayers love nothing more than throwing around large sums of money to coerce normal humans to do unspeakable tasks.The regular cheesesteak orders are different. San Francisco Giants ace Logan Webb has one a day whenever he’s here. That is, unless he’s pitching. What makes them so good?