Derek Jeter has a very simple explanation for deciding to retire at the end of this season.

"It's time," the New York Yankees shortstop said Wednesday. "You do this forever."

Jeter met with the media on Wednesday, the day Yankees position players reported to spring training, and spoke publicly about his decision to retire for the first time since posting the news on his Facebook page a week earlier.

In his typical understated manner, Jeter was not overly revealing about what led him to decide to call a career at age 40 -- all with the Yankees -- and showed no emotion as answered questions for nearly 25 minutes.

"I always felt it would be time to retire when baseball became work," Jeter said. "Playing baseball is fun; not playing baseball is not fun. I didn't play much last season and that wasn't fun. That's when I started thinking that it was time to retire."

Jeter was limited to 17 games last season because of a variety of leg injuries, the biggest being breaking his left ankle for the second time in two seasons. He suffered the same injury in Game 1 of the 2012 American League Championship Series against the Detroit Tigers.

Jeter also holds the franchise record with 3,316 hits, the highest total among active players and ninth in major-league history. Perhaps most impressively, the Yankees have been eliminated from postseason contention in only one of Jeter's 2,602 regular-season games.

---First baseman Brandon Belt and the San Francisco Giants agreed to a one-year, $2.9 million contract on Tuesday night before a scheduled arbitration hearing in Florida.

The 25-year-old Belt was seeking $3.6 million and the Giants had offered $2.05 million in their arbitration filing.

Last season, Belt batted .289 with 17 home runs and 67 RBIs in 150 games. He has a career .273 batting average with 33 homers and 141 RBIs in three years with the Giants.

---The Atlanta Braves gave contract extensions to manager Fredi Gonzalez and general manager Frank Wren.

No contract terms were revealed. Gonzalez and Wren were entering the final year of their contracts.

Gonzalez took over as manager when Bobby Cox retired after the 2010 season.

Wren has served as general manager since John Schuerholz was named team president in 2007.

---Major League Baseball might have a home-plate collision ban in place for spring training games, according to a report.

If umpires approve the proposed rule change, it would be lin the players' hands to ratify it, reported Wednesday.

The proposed rule would force runners to slide or avoid a head-on collision with the catcher on a close play at the plate. The change was proposed in an effort to avoid serious injuries.

---Major League Baseball dropped its lawsuit in a state court in Miami against a now-defunct Florida anti-aging clinic involved in the performance-enhancing drugs scandal that included New York Yankees third baseman Alex Rodriguez.

Matthew Menchel, an MLB attorney, said baseball is no longer pursuing the case against the clinic, Bogenesis of America, owner Anthony Bosch and several others. MLB filed a one-sentence notice of withdrawal, which was expected after Rodriguez's decision last month to accept and serve a 162-game ban for the 2014 season in connection with the case.

---The Cincinnati Reds and right-hander Homer Bailey agreed on a six-year, $110 million contract, according to reports.

The deal includes a mutual option for a seventh year, reported, and keeps Bailey from becoming a free agent after the 2014 season. The 27-year-old Bailey has compiled a 49-45 record with a 4.25 ERA in seven seasons with the Reds.

---The Baltimore Orioles finalized a four-year, $50 million contract with right-hander Ubaldo Jimenez.

The 30-year-old Jimenez has an 82-75 career record with a 3.92 ERA in 212 career games, including 211 starts, with the Colorado Rockies and the Cleveland Indians. The deal became official after Jimenez passed a physical.