MLB notebook: Dodgers manager thinks Bauer being ‘singled out’ by umpires Dave Roberts wonders why only Trevor Bauer's name appeared as an apparent target of MLB's investigation into the use of foreign substances by pitchers. Associated Press Share Dodgers Manager Dave Roberts, left, thinks starting pitcher Trevor Bauer is being unfairly singled out as officials try to crack down on pitchers using foreign substances. David Zalubowski/Associated Press LOS ANGELES — Dodgers Manager Dave Roberts said he believes right-hander Trevor Bauer is being “singled out” by Major League Baseball after umpires in Oakland collected several baseballs he threw in his last start, apparently to examine for foreign substances.