The St. Louis Cardinals are finalizing a trade to acquire star third baseman Nolan Arenado from the Colorado Rockies, a blockbuster that still needs various approvals but is expected to be completed in the coming days, sources confirmed to ESPN on Friday.

The St. Louis Cardinals are in talks with the Colorado Rockies about the possibility of a blockbuster trade centered around Nolan Arenado, according to a report.

While no deal is close and one source indicated such a trade "might not happen at all," The Athletic's Ken Rosenthal wrote, other sources "believe the Rockies are motivated to move Arenado and the Cardinals are motivated to acquire him."

Arenado, 29, has six years and $199 million left on the extension he signed with the Rockies in February 2019.

The New York Yankees have traded reliever Adam Ottavino to the Boston Red Sox for a player to be named or cash.

New York was looking to reduce its luxury tax bill. They will send $850,000 to Boston to offset some of Ottavino's $8 million salary, according to a source.

This was just the second trade since 1987 between the rivals.

"I know it's the Yankees and I understand what that means and it's the most storied rivalry in sports," Red Sox chief baseball officer Chaim Bloom said. "But if we're not willing to do something that helps us because it also helps them, or worse, if we're worried that it might not go as we expect and it blows up in our faces and we looked at it, well, then, we're just playing scared, and we're not going to play scared."

The Chicago Cubs and Toronto Blue Jays have discussed a trade centered around Kris Bryant, according to a report.

Kyle Hendricks is believed to be involved in the negotiations as well.

The San Diego Padres have acquired Joe Musgrove in a three-team, seven-player deal involving the New York Mets and Pittsburgh Pirates.

The Padres will send Joey Lucchesi to the Mets and a package of four prospects to the Pirates.

Pittsburgh will also get a prospect from New York.

Cincinnati Reds general manager Nick Krall has issued a statement denying rumors that Luis Castillo could be traded to the New York Yankees.

"[The rumors] are completely false," Krall told The Cincinnati Enquirer. "We intend to have [Castillo] as a member of our rotation for 2021."

According to Jon Heyman of the MLB Network, the Reds informed teams that they now intend to hold onto Castillo, but they tested the waters for a potential trade.

The Cincinnati Reds are "opening to listening" to trade offers for Nick Castellanos, Mike Moustakas and Eugenio Suarez, according to a report.

Suarez is drawing the most interest of the three players.

The report notes that the Reds discussed Suarez with the Washington Nationals, but that a trade remains "pretty unlikely."

The Toronto Blue Jays and Chicago Cubs have engaged in trade talks centered around Kris Bryant, according to a report.

The Blue Jays have been seeking a major move this offseason. The report notes that talks between the two clubs haven't been active lately.

Bryant, 29, is coming off a disappointing 2020 season. He hit .206/.292/.351 in 131 at-bats.

The Boston Red Sox are shopping Andrew Benintendi in trade talks this offseason, according to multiple sources.

The Red Sox are looking for prospects in return with a focus on pitching and outfield help.

Benintendi, 26, has struggled in recent seasons since breaking onto the scene as one of baseball's top young prospects.

The New York Mets have agreed to a trade with the Cleveland Indians for Francisco Lindor and Carlos Carrasco.

The Indians will receive defensive-minded shortstop Andres Gimenez and two minor-league prospects -- right-hander Josh Wolf and outfielder Isaiah Greene -- in the trade.

Lindor ranks first among all shortstops in WAR since 2015.