At 3.04 after 30 games, their starting rotation has the best ERA in the American League.

That should come as no surprise if you've been paying attention at all to the Tigers, whose game against the Nationals was rained out Tuesday.

If anything, the surprise is there is a rotation in the majors with a significantly lower ERA than the Tigers — the 2.21 of the Cardinals.

What was surprising Tuesday was the Tigers-Nationals game was called when weather conditions were improving. The two teams, in fact, kept working out for an hour after the game was called.

But this isn't the first time a postponement button has been pushed too fast.

And it probably won't be the last time.

The Tigers wanted to get home for a Thursday day off before opening a series against the Indians at Comerica Park on Friday, but, of course, had no say in the matter.

So they merely pushed Anibal Sanchez back a day to tonight, and Doug Fister back a day to the makeup game at 4 p.m. Thursday.

And, at the same time, the Tigers put Brayan Pena's daily anticipation on a 24-hour hold.

Pena, as you might have detected, is one of the friendliest and talkative Tigers. Plus, he's thrilled to be part of the catching corps for a rotation as talented as the Tigers.

"I love watching these guys," he said. "I love being on this team, catching when I catch, seeing how they work and the way they prepare."

Makes a catcher's job easy, doesn't it?

"No, it's not easy," he said. "But it's not easy for the right reason. They have nasty stuff, and what's hard for a hitter to hit can also be challenging for a catcher to catch. These guys are amazing."

New to the team, Pena knew he'd had some catching up to do. He didn't know the starters, and they didn't know him. But the Tigers are 5-3 in the eight games he's started, and there have been compliments along the way for the job he does.

But here is where he says his job is easy: The starters are so well prepared for their assignments that there've not been many awkward moments.

"What I've seen from those guys has been unbelievable," Pena said. 'They have great game plans, which they follow, and what I really like is the competition level between them."