PHILADELPHIA – The White Sox just created a logjam at shortstop when they selected UCLA captain and star Roch Cholowsky with the first pick in Major League Baseball’s First-Year Player Draft on Saturday. The announcement was delivered by commissioner Rob Manfred at a live event at the Philadelphia Convention Center carried nationally on NBC, which broadcast the first 10 picks. The White Sox, who won the draft lottery this past December, had a choice of picking either shortstops Cholowsky or…