With April now in the books, what were some of the biggest surprises through the first month of the 2012 MLB Season? I’ve outlined five shockers below.

Pujols suddenly can’t hit.
It’s not completely surprising that Albert Pujols is slumping at the plate to start the season. After all, midway through April last year he was hitting just .222 for the Cardinals with only one home run. But who could have predicted that Pujols would look this bad in his first full month with the Angels? He has zero home runs, is hitting just .217 and has collected only four RBI. He’s clearly pressing right now and it doesn’t look like he has a clue on how to shake out of his funk. He’ll eventually come around but thus far, his struggles at the dish have been national news.

The Cardinals’ pitching staff.
Who would have thought that Adam Wainwright would be the biggest issue facing the Cardinals’ pitching staff through the month of April? Entering Tuesday’s action, Wainwright was sporting a 0-3 record with a 7.32 ERA. Meanwhile, Kyle Lohse and Lance Lynn are both 4-0 and Jake Westbrook is 3-1 with a 1.30 ERA. In fact, Wainwright is the only Cardinals’ starter that has an ERA over 2.78. When Wainwright eventually figures it out (and he will), and Lohse, Lynn, Westbrook and Jaime Garcia continue to pitch as well as they have, the Cardinals will be extremely tough to beat in the National League again this year.

The Washington Nationals are in first place.
Ask the Pirates – being in first place after the first month of the season or even at the All-Star Break (as Pittsburgh was last year) doesn’t mean squat. But the Nationals have been fun to watch regardless. Adam LaRoche has been fantastic, as he’s leading Washington in average (.329), home runs (4), RBI (17), OBP (.415) and total hits (27). But the other story has been the Nationals’ pitching, as four of their five starters have ERAs south of 2.00. The organization just brought up rookie phenom Bryce Harper too, which virtually guarantees that the Nationals will be relevant for a little while longer.

The Tigers aren’t in first place in the AL Central.
Blame the media for this one. Once the Tigers signed Prince Fielder last offseason, everyone just assumed that the rest of the AL Central would just roll over and play dead. But while the Tigers have had issues with their starting pitching, the Indians (11-9, first place) and White Sox (11-11, tied for second) have played well. Justin Verlander continues to be the rock of the rotation and Drew Smyly has been a pleasant surprise, but Rick Porcello and Max Scherzer have been disastrous. Porcello is currently sporting an ERA of 6.45 while Scherzer’s ERA is an abysmal 7.77. It doesn’t matter if Fielder and Miguel Carbera continue to hit the snot out of the ball – if the Tigers’ pitching doesn’t come around then there could be an upset brewing in the AL Central.

The Dodgers have the best record in the NL.
Ah, the power of Magic. Apparently all it took for the Dodgers to start playing well was for them to be sold. Los Angeles is currently sitting atop the NL West standings at 16-7, which includes a dazzling home record of 10-2. Matt Kemp has been ridiculous through 23 games, leading the league in batting average (.417), home runs (12) and RBI (25, tied with Texas’ Josh Hamilton). Better yet for L.A. Andre Ethier (.276, 5 HRS, 24 RBI) is actually contributing as well. If the pitching continues to be as good as it has (Clayton Kershaw is 2-0 with a 1.78 ERA while Chad Billingsley is 2-1 with a 2.64 ERA), then the Dodgers will prove that their hot start isn’t a fluke.

In a three-team deal involving the Cardinals, Padres and Indians, St. Louis acquired starter Jake Westbrook, San Diego nabbed Ryan Ludwick and Cleveland received prospect Corey Kluber. The Cards also acquired prospect Nick Greenwood from the Padres.

From MLB.com:

“I’m excited,” Westbrook said. “I’m excited to go to a club contending for a playoff spot and pitch in some meaningful ballgames. That’s why you play the game, for a chance to get into the playoffs, and I’m looking forward to doing that.”

Westbrook was so eager to get in the playoff chase that he actually forfeited some of the trade protection in his contract. He was set to receive a $2 million bonus if dealt, and that was a major roadblock in trade talks, given that Westbrook is already owed nearly $4 million in salary this season.

But Westbrook agreed for that bonus to be lowered. The exact details were not announced, but the stipulation had to be approved by the Players Association.

“It was one of the hold-ups for getting me traded,” Westbrook said of the bonus. “I don’t really want to comment on the details of that, but it was something. Any way that I could help out the Indians, I needed to do that, because I didn’t really feel like I honored my contract as well as I would have liked to, being hurt. It was in my best interest and the Indians’ best interest to do something like that.”

I like this deal for all teams involved. The Cards lost Ludwick, but they’re going to save money (money they’re going to need to retain Albert Pujols) over the next two seasons and they added a workhorse Westbrook. He’s not a great arm at this point in his career, but St. Louis doesn’t need a great arm. They needed an upgrade at the backend of their rotation and that’s exactly what they got today in Westbrook.

Remember when the discussion about the Padres was about whether or not they would trade Adrian Gonzalez at some point before the deadline? Now look at them. They strengthened their bench with Miguel Tejada and acquired an All-Star in Ludwick to boost their offense for the stretch run. Give San Diego’s front office credit – they’re going for it.

According to his scouting report, Kluber lacks big upside, but he has a chance to be a solid back-end starter. The key to this deal for the Indians is that they save money by trading Westbrook’s contract. Westbrook wasn’t going to have a role in the Tribe’s future, so trading him now saves the club money and landing Kluber gives them a prospect that projects to being a cheap major league-caliber starter.

It’s not often that three teams get exactly what they want out of a deal, but I think the Cardinals, Padres and Indians came pretty close today.

Some pitchers give up 1-2 home runs or more per game, while some of them are masters at keeping the ball in the park. We did a gopher ball list last year, so here is the opposite…the pitchers who give up the fewest home runs per nine innings, and therefore the guys you want in the game when the game is on the line:

1. Mariano Rivera, New York Yankees (0.4953)—Amazingly, Rivera gave up 11 home runs his rookie year (1995) and since then, only 50. That’s 50 home runs in like 15 years, or about 3 per season. That’s just sick. No wonder the guy has so many career saves (538).

2. Tim Hudson, Atlanta Braves (0.7141)—If only Hudson was able to stay healthy for any length of time, he’d be a lock for the Hall of Fame.

3. Derek Lowe, Atlanta Braves (0.7221)—When you have a ball that drops like six feet before it reaches home plate, you’re not going to have a lot of hitters get under your pitches. What you’ll get are lots of ground balls.

4. Aaron Cook, Colorado Rockies (0.7384)—If you’re a pitcher in Colorado, it’s sort of like being a meatball sandwich in a pizza joint. You’ll get noticed, but only when they run out of pizza…or in this case, when the Rockies aren’t hitting. Still, when you think about Cook and how he’s spent his entire career in Denver, being fourth on this list is quite an accomplishment.

5. Roy Halladay, Philadelphia Phillies (0.7385)—A perfect game only added to Halladay’s Hall of Fame resume.

6. Carlos Zambrano, Chicago Cubs (0.7445)—He’s always angry but always has nasty stuff, and, like Cook, he pitches in a hitter-friendly park.

7. Andy Pettitte, New York Yankees (0.7671)—Lucky for the Yankees, Pettitte’s career high of 27 home runs allowed was when he was with the Astros in 2006.

8. Roy Oswalt, Houston Astros (0.7729)—He has an impeccable nose for the strike zone, but puts enough on his pitches to keep hitters guessing and in the park.

9. Jake Westbrook, Cleveland Indians (0.7999)—He hasn’t pitched much in the last three years, but when he does, Jake Westbrook is very good at keeping the ball in the yard.

10. AJ Burnett, New York Yankees (0.8213)—As if the Yankees needed another guy like this in their rotation.

Source: Baseball Reference