Masahiro Tanaka (#19) of the New York Yankees lies on the pitcher's mound after he was hit in the head by a batted ball during summer workouts at Yankee Stadium on July 4, 2020, in New York City. (Getty/Kyodo)

NEW YORK - Masahiro Tanaka was struck in the head by a line drive during New York Yankees' practice on Saturday, but was treated and released from hospital in good health the same day.

According to the team, the Japanese right-hander exhibited concussion-like symptoms which later subsided and is alert while able to walk under his own power. As a precaution, however, he will still be placed into concussion protocol.

"I appreciate all the support. I feel it a bit right now, but I'm all good," Tanaka said on Twitter. "Going to try to get back on the mound ASAP! Thanks again for all the encouraging words!"

Tanaka took the force of a liner off the bat of Giancarlo Stanton at Yankee Stadium and immediately dropped to the ground during the team's first official workout of summer camp.

"Anytime you see that on a baseball field -- and then add in there that it's a teammate -- that stops you in your tracks," Yankees manager Aaron Boone said according to MLB.com.

Masahiro Tanaka (3rd from L) of the New York Yankees is helped off the field after he was hit in the head by a batted ball during summer workouts at Yankee Stadium on July 4, 2020, in New York City. (Getty/Kyodo)

"You hope for the best. When I went out to the mound, at least in the immediate, I felt somewhat good about it because he was alert and very aware. There was a little relief there, but you always worry about the next minutes and hours. The fact that we're getting good news is a good thing."

Boone revealed that Tanaka opted to take the mound without a protective screen while facing batters during the simulated game.

"Masa did not want it," Boone said. "You've got to get out there at some point without it. As we get into live BPs (batting practices) and intrasquad situations, guys will have it out there, some guys won't...Unfortunately, that's sometimes the risk that goes along with it."

Tanaka returned from Japan earlier in the week after MLB decided to implement a 60-game season, with Opening Day slated for July 23 or July 24.

The 31-year-old hurler, who is entering his seventh season with the Yankees, went 11-9 with a 4.45 ERA in 32 games last year.

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