The Marlins have to set their roster by Wednesday, when they open the season against the Cardinals. Miami plans to carry Donnie Murphy as a utility player, and Chad Gaudin, a non-roster invitee, as a long reliever. The decision to go with Murphy was difficult, because infielder Donovan Solano, a non-roster invitee, had a sensational camp. "We talked to Solano today," manager Ozzie Guillen said. "Solano is staying in Triple-A. We're going to take Murphy. Solano has had the best Spring Training I've ever seen. I had to explain to him everything about the details, and why he's not on the ballclub. It was kind of hard."

The Braves will start Tommy Hanson on Opening Day against the Mets at Citi Field. "It's definitely a good feeling," Hanson said. "I was excited about it. I'm definitely glad I'm pitching Opening Day. It's an honor." It's a first-time honor for the 25-year-old pitcher.

The Orioles have placed pitcher Alfredo Simon on outright waivers, according to sources. Dan Duquette, Baltimore's executive vice president of baseball operations, said that information about the waiver process is confidential and that Simon currently remains on the 40-man roster. Simon has been both a starter and a reliever for the Orioles, making 16 starts while appearing in 23 games last season.

The Padres have agreed to an extension with left-hander Cory Luebke that will keep him under contract through 2017. The deal runs through the 2015 season with club options for 2016 and 2017, the latter of which would be the first season Luebke would be eligible for free agency. Luebke is guaranteed $12 million in the deal and can potentially earn $27.75 million. The breakdown is a $500,000 bonus paid over two installments, $500,000 in 2012, $1 million in 2013, $3 million in 2014, $5.25 million in 2015, a $7.5 million club option for 2016 and a $10 million club option for 2017.

At 49 years old, Jamie Moyer has earned a spot in Colorado's starting rotation. The left-hander will start the team's second game of the season. "It is still Jamie Moyer. It's the Jamie Moyer that was pitching prior to the arm injury that cost him the entire 2011 season. It's the same guy," Rockies manager Jim Tracy said. "It's the same worker. It's the same professional. It's the same stuff, same velocity, same pitches. When he's right, same type of effectiveness. You're going to venture into this."

The Angels have added Jason Isringhausen to their 40-man roster, giving the veteran right-hander a spot in their Opening Day bullpen. Under the Collective Bargaining Agreement, the Angels would have had to pay $100,000 to keep Isringhausen, who signed to a Minor League contract at the start of Spring Training, on the roster past this morning.

The Astros have released Livan Hernandez from his minor league contract. Hernandez, 37, made five starts for Houston in spring training after signing with the club on Jan. 31. The right-hander has quickly caught on with the Braves.

The Angels have optioned outfielder Mike Trout to Triple-A Salt Lake. He had a rough spring, losing 15 pounds because of an illness. Trout, 20, has yet to play in the outfield this spring after he experienced some shoulder stiffness. His next game at Triple-A will be his first, as the Angels promoted him straight from Double-A Arkansas last season.

Having moved to the position just five years ago, Indians catcher Carlos Santana is entering his second full season as the team's catcher and is an emerging star. He was a third baseman in the Dodgers system when they asked him to change positions. Cleveland bench coach Sandy Alomar Jr. has helped guide the youngster through the development process. "You couldn't find a better guy to teach you," manager Manny Acta said. "He's been very important to Carlos." Alomar is a veteran of 20 big league seasons -- 11 with the Indians -- which included six All-Star appearances and a Gold Glove during his time as a Major League catcher. The former All-Star has tutored Santana on both the physical and mental aspects of the game. "I try to tell him is listen, you're going to be that pitcher's caddy every day," Alomar said. "That's the most important relationship -- between you and the pitchers. They have to know that you really care about them. The day that you have really bad offensive days, you have to go out there and say, 'At least I can make a difference behind the plate.' "You have a lot on your plate in regards to how to focus in the game, but you need to have that pitcher having that confidence and trust in you, that you're really in the game with him even when things are not going good for you offensively."

Cubs right-hander Jeff Samardzija has landed the third spot in the starting rotation. He will come after Ryan Dempster and Matt Garza, while Chris Volstad and Paul Maholm will follow. "I didn't have too many things that I've really had to earn and I had to earn this and it feels good," said the former wide receiver, who set records at Notre Dame. "To put that work in and see it pay off, it's pretty nice."