ARLINGTON -- Yu Darvish completed preparations for his return to the Texas Rangers' rotation with an uneventful bullpen session on Wednesday.Darvish will start on Saturday against Pittsburgh at Globe Life Park. It will be his first major-league start since Aug. 9, 2014. He underwent Tommy John surgery on May 17, 2015.Darvish insisted that despite the lengthy layoff, he is not experiencing a heightened sense of excitement about pitching again.``I'm very calmed down right now,'' said Darvish, speaking through an interpreter.Darvish admitted he emotions could change as he gets closer to the start.Darvish will follow left-hander Cole Hamels in the rotation.