CHICAGO -- Managing a big league baseball team was far from Grady Sizemore's mind when he joined the Chicago White Sox as a coach this season, but after being elevated to that position on an interim basis Thursday, he said he's looking forward to the challenge. "I was surprised -- surprised but excited," Sizemore said before his first game Friday. "I welcome the challenge and the opportunity. Just could not wait to get going." Sizemore and general manager Chris Getz spoke to reporters in the dugout before their team took on the crosstown Cubs one day after Getz fired manager Pedro Grifol and three coaches. Sizemore said he had a hard time sleeping Thursday and is hoping to bring a different energy to the dugout. "I'm a different person, so it's definitely going to be a different voice, a different attitude, a different energy," Sizemore said. "Everyone's different. I'm just going to be myself, try to be authentic and try to be the same guy these players have seen...