St Louis Cardinals

South Korean reliever Seung-hwan Oh signed with the St. Louis Cardinals on Monday, general manager John Mozeliak confirmed at a press conference.  

"Ultimately we brought Oh in to what we feel is already a very dynamic bullpen and he will most definitely add to that," Mozeliak told reporters.

After a season in which their starting rotation led Major League Baseball with a 2.99 ERA, you'd think a starting pitcher would be the last thing the St. Louis Cardinals would need this winter.

But need one they did. And Tuesday, they found just the man for the job in Mike Leake.

For the second time in less than a year, Mike Leake has found a new home, agreeing to terms with the St. Louis Cardinals.

The reignited rivalry between the St. Louis Cardinals and Chicago Cubs didn't need any more heat. But Jason Heyward and Mike Matheny went ahead and added some spice anyway.

Jason Heyward signed an eight-year, $184 million contract with the Chicago Cubs this offseason after spending 2015 with the St. Louis Cardinals.

St. Louis Cardinals fans have every right to feel jilted by Jason Heyward. He didn't just spurn them, after all. He ran into the arms of their longtime division rival. So the jersey-burning antics, while a touch melodramatic, are somewhat understandable.

After a successful run with the St. Louis Cardinals down the stretch last season, right-hander Jonathan Broxton has agreed to a two-year extension with the team. 

The St. Louis Cardinals announced Monday they signed free-agent catcher Brayan Pena to a two-year contract. According to Derrick Goold of the St. Louis Post-Dispatch, Pena's contract is worth $5 million.   

The St. Louis Cardinals had many good things going for them in 2015, but power was not one of them. As such, you can't blame them for having eyes on the best power hitter money can buy.

We can, however, offer a few words of warning: Cardinals, my friends, here's where you need to tread very, very carefully.

Starting pitching was the least of the St. Louis Cardinals' problems in 2015. Even despite losing Adam Wainwright for the bulk of the year, the Cardinals rotation still racked up an MLB-best 2.99 ERA.

If St. Louis is going to keep that vibe going into 2016, however, it has some work to do.