The Washington Nationals lost the opening contest of their three-game series against the Chicago White Sox on Friday. It was a disappointing major league debut for right-handed pitcher Riley Cornelio , as the 25-year-old struggled to find the zone during his outing. That resulted in three runs allowed (two earned) across two innings pitched, where he issued four walks and only struck out one batter on his way to being credited with the loss. Cornelio was optioned back to Triple-A Rochester after the game. There was no indication of what the corresponding roster move might be at the time, but ahead of Saturday's contest, the Nationals announced that first baseman Andres Chaparro was recalled. Nationals Add More Offensive Options by Recalling Andres Chaparro Washington Nationals first baseman Andres Chaparro | Sam Navarro-Imagn Images Chaparro was the starting first baseman on Opening Day against the Chicago Cubs.…