The White Sox will hold an MLB Draft party for fans before their 1:10 p.m. game Saturday against the Athletics, but the South Siders still don’t know whom the virtual guest of honor will be. The Sox will select first when the draft opens at noon Central time in Philadelphia as a part of All-Star festivities. MLB said Friday no amateur players are scheduled to attend the draft. Fans will be able to enter Rate Field at 11:40 a.m. There remains no slam-dunk No. 1 pick, but the Sox probably will sel