Andrew Miller updates his hamstring issue, Kelly Johnson on the AL East

Orioles relief pitcher Andrew Miller last pitched on Monday night. He went two-thirds of an inning, throwing seven pitches against Minnesota. On his last pitch, he felt something in his left hamstring. He was apparently not available to pitch last night, but he said whatever it is that bothered him is no longer a concern. "I think I just barely tweaked it, grabbed it a little bit on the last pitch," Miller said this afternoon. "Not really too concerned with it. All in all, feel better today than I did yesterday and it's as minimal as anything could possibly be. I don't think it will limit me in any aspect of the game." So is Miller available to pitch tonight? "Obviously for me, the big picture is make myself available as the games get more and more important," he said. "I don't know exactly what they will say as far as tonight goes. But if push came to shove, I would think I could pitch. Not really too concerned." Miller has pitched in 13 games since the Orioles acquired him in a trade with Boston. He is 2-0 with a 1.42 ERA. In 12 2/3 innings, he has allowed seven hits with three walks and 17 strikeouts. "I pulled my hamstring a few years back with Boston in spring training. That didn't take very long and this is not even in the same," he said. "It's not even worth comparing the two, it is so different. I don't know how cautious they will be, but I'm going to make myself available. I want to pitch and I want to be out there." Meanwhile, Kelly Johnson makes his first start for the O's tonight. He'll bat seventh and play third base. He was acquired in another deal with Boston, this one on Saturday night. The 32-year-old Johnson began this year with the Yankees, was traded to Boston on July 31 and then was traded to the Orioles. Johnson is batting .212 with six homers, 23 RBIs and a .644 OPS in 87 games with New York and Boston. Last season with Tampa Bay, he hit .235 with 16 homers, 52 RBIs and a .715 OPS. When he talked with reporters upon arriving in the clubhouse on Monday, he said he was elated to be an Oriole. "I'm so excited. I'm easily the happiest guy in this room right now for sure," Johnson said. "Happy to be able to come into a situation like this and want to help them win more games." Johnson is the first player ever to play for all five American League East teams. He was asked which park among the five is his favorite. "This one. I've always liked it here," he said. "First time I came here was with the Braves in, I think, 2008. As a kid, this was always one of those ballparks you watch on TV. I enjoy playing here and it is up there of all in the game for me." With all his experience in the AL East, this will be a month when Johnson will certainly be familiar with O's opponents. Beginning Friday, the Orioles play only division rivals for the rest of this season. "Well, it's nothing new. I'm not going to be wide-eyed," he said. "The first time I came into the division in 2011, you are seeing new parks and it's the AL East. So it could be intimidating. Now I'm over that. Just will be fun to compete against guys I've played with. And we're in first place. It doesn't get any better."