Manny Machado hit a home run in the ninth inning in his first game with the Los Angeles Dodgers at Dodger Stadium.

Machado said he would "definitely" take these next few months as an opportunity to determine whether the Dodgers are a fit long-term as he hits free agency.

"I'm going to try different things and try new things," Machado said. "It's definitely going to be a learning experience. I'll get to know the city a lot better, I'll get to know the organization a lot better. At the end of the day, we'll see what happens."

The fans at Dodger Stadium had a MANNYWOOD 2.0 sign in the bleachers.

"It's awesome," Machado said of Dodger Stadium. "There's a lot of history here."

Machado would like to play shortstop long-term though he's currently played third base filling in for Justin Turner. Corey Seager is out for the season with Tommy John surgery, but he could play second base when he returns regardless of whether Machado is re-signed.

"Obviously I'm a shortstop at heart," Machado said. "I want to continue to play shortstop. I will go back over there. But at the end of the day, the most important goal is to get to the World Series and to win the World Series."

The Oakland Athletics have released Santiago Casilla, five days after he was designated for assignment.

Casilla is 42-31 with 144 career saves in 15 seasons, but has been up and down this year while having control issues.

He turns 38 next week.

Major League Baseball and the Korean Baseball Organization have agreed to a revised posting system that allows players to move to the United States before they are free-agent eligible, according to a report.

The new agreement runs through Oct. 31, 2021.

Under the previous system, when a KBO team posted a player for MLB clubs before he reached free agency, they'd inform MLB and all interested teams would submit a blind bid. If the KBO club deemed the highest bid suitable, that MLB team would have a 30-day window to negotiate a contract.

Kaito Yuki is headed to the Kansas City Royals organization instead of attending high school in Japan.

The team signed Yuki, a 16-year-old pitcher, out of junior high to a standard seven-year minor league contract Sunday. He is thought to be the first Japanese junior high school player to sign with a major league club.

"I wanted to play in the United States as soon as possible, rather than playing high school ball at Koshien Stadium (in Japan's iconic national championship)," Yuki said in a Royals press release.

The Minnesota Twins have lost nine of their last 11 games and are now open to trading their pending free agents, according to sources.

That group of players includes Brian Dozier, Eduardo Escobar, Lance Lynn and Zach Duke.

Joe Mauer is also in the final year of his deal, but he has a full no-trade clause.

The New York Yankees signed Rafael Severino, the 19-year-old brother of Luis Severino, on Monday.

The right-hander will report to New York's academy in the Dominican Republic.

"He was flipping out. He didn't believe it," Luis Severino said.

According to Luis, Rafael already has a changeup and sinker in addition to his fastball and slider.

The San Francisco Giants signed 11 international prospects on Monday, including power-hitting shortstop Marco Luciano out of the Dominican Republic.

Luciano, 16, is regarded as one of the top international prospects in the 2018 class.

All of the contracts are pending physicals.