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St Louis Cardinals rookie Joshua Baez made quite the impression as he wrote himself into the MLB history books on his debut in the majors.

Baez, the star prospect whom St. Louis called up Friday, left fans amazed when he went on an insane home-run blitz during the Cardinals' 8-4 win over the Chicago Cubs at Wrigley Field on Saturday.

The 23-year-old became the first player to hit a home run in each of his first three at-bats in the majors.

To add to the surreal debut, the left fielder smashed the first pitch he ever saw in the majors about 450 feet for his first homer of the game - and his major-league career.

He flashed a grin to the St. Louis dugout as he began his home run trot. But the smiles did not end there.

His next at-bat ended with a solo shot down the left-field line and the third, on his ensuing at-bat, went the opposite way, giving him five RBIs.

Major League Baseball said Baez was the first player in modern baseball history to hit three home runs in his debut. The league cannot say with certainty whether the feat happened before 1901 due to a lack of game logs.

'There was a calmness and a smile, like, "I'm here,"' Cardinals manager Oliver Marmol said. 'It's rare for me to pick my head up to enjoy parts of it. He didn't exactly give us an option but to actually take a step back and enjoy the heck out of what was going on there.'

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Tommy John, who won 288 games during a 26-year big league career and became the first pitcher to successfully return following groundbreaking elbow surgery that later was named after him, has died at the age of 83.

He died at his home in Bradenton, Florida, on Saturday night, agent Mike Maguire said Sunday. He had been in hospice care.

On August 8, the New York Yankees released a social media post in which John wrote that he wanted to say goodbye to everyone, including friends and fans who followed him throughout his career, saying, 'I will never forget you.'

The Yankees called John 'a bedrock of our rotation during his time in pinstripes and a longtime favorite of Yankees fans.'

John was a four-time All-Star with a record of 288-231 and a 3.34 ERA during a career that stretched from 1963 to 1989. He pitched for Cleveland, the Chicago White Sox, the Los Angeles Dodgers, the Yankees, the California Angels and the Oakland Athletics.

'Tommy was an exceptional pitcher throughout his career in Major League Baseball, and his courageous role in becoming the first to have surgery that would go on to bear his name canīt be overstated,' Stan Kasten, Dodgers president and CEO, said in a statement. 'His impact both on and off the field has been felt by ballplayers of all ages and will be for generations to come.'

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The Phillies are off and running on Trade Deadline day. The club is set to acquire infielder Luis Arraez and pitcher Caleb Kilian from the Giants and left-hander Brooks Raley from the rival Mets, a source told MLB.com's Mark Feinsand on Monday.

Philadelphia is sending Minor League outfielder John Spikerman and right-hander Luke Gabrysh to the Mets, and San Francisco will receive right-handed pitching prospects Ramon Marquez and Marty Gair, per Feinsand. The clubs have not confirmed the deal.

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The Dodgers have somehow become even stronger. The two-time World Series champions have acquired left-hander Tarik Skubal from the Tigers, according to announcement from both clubs. Detroit receives right-hander River Ryan, outfielder Zyhir Hope, and righty Brady Smith.

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