Chicago White Sox first baseman Jose Abreu and Kansas City third baseman Hunter Dozier left the first game of a doubleheader Friday with undetermined injuries after colliding hard on the first base line.

After popping up in the second inning, Dozier jogged out of the batter’s box with his head down. Abreu, the AL MVP in 2020, was running along the first base line while tracking the ball.

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Kansas City Royals' Hunter Dozier is attended to after colliding along the first base line with Chicago White Sox's Jose Abreu in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Chicago White Sox first baseman Jose Abreu and Kansas City third baseman Hunter Dozier left the first game of a doubleheader Friday with undetermined injuries after colliding hard on the first base line.

Chicago White Sox's Jose Abreu holds his head after colliding along the first base line with Kansas City Royals' Hunter Dozier in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

After few minutes, Abreu got up and left the field walking on his own, but looking dazed and with his arms draped around two medical staffers. He was replaced at first base by Grandal.

Chicago White Sox's Jose Abreu, left, heads to the dugout as Kansas City Royals' Hunter Dozier heads to his dugout after they collided along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Chicago White Sox's Jose Abreu, left, heads to the dugout as Kansas City Royals' Hunter Dozier heads to his dugout after they collided along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Chicago White Sox's Jose Abreu, left, heads to the dugout as Kansas City Royals' Hunter Dozier tries to get up after they collided along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Chicago White Sox's Jose Abreu, left, heads to the dugout as Kansas City Royals' Hunter Dozier tries to get up after they collided along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Kansas City Royals' Hunter Dozier rubs his head as he heads to the dugout after colliding with Chicago White Sox's Jose Abreu along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Kansas City Royals' Hunter Dozier rubs his head as he heads to the dugout after colliding with Chicago White Sox's Jose Abreu along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

The two players ran into each about 20 feet from home plate as catcher Yasmani Grandal caught the pop for the second out of the inning. Abreu and Dozier dropped to the ground and were attended to by the medical staff.

Kansas City Royals' Hunter Dozier is attended to after colliding along the first base line with Chicago White Sox's Jose Abreu in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Kansas City Royals' Hunter Dozier is attended to after colliding along the first base line with Chicago White Sox's Jose Abreu in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

After few minutes, Abreu got up and left the field walking on his own, but looking dazed and with his arms draped around two medical staffers. He was replaced at first base by Grandal.

Hunter was replaced at third based by Hanser Alberto in the bottom of the second.

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Chicago White Sox's Jose Abreu holds his head after colliding along the first base line with Kansas City Royals' Hunter Dozier in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Chicago White Sox's Jose Abreu holds his head after colliding along the first base line with Kansas City Royals' Hunter Dozier in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Chicago White Sox's Jose Abreu, left, heads to the dugout as Kansas City Royals' Hunter Dozier heads to his dugout after they collided along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Chicago White Sox's Jose Abreu, left, heads to the dugout as Kansas City Royals' Hunter Dozier heads to his dugout after they collided along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Chicago White Sox's Jose Abreu, left, heads to the dugout as Kansas City Royals' Hunter Dozier tries to get up after they collided along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Chicago White Sox's Jose Abreu, left, heads to the dugout as Kansas City Royals' Hunter Dozier tries to get up after they collided along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Kansas City Royals' Hunter Dozier rubs his head as he heads to the dugout after colliding with Chicago White Sox's Jose Abreu along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)

Kansas City Royals' Hunter Dozier rubs his head as he heads to the dugout after colliding with Chicago White Sox's Jose Abreu along the first base line in the second inning of the first game of a baseball doubleheader Friday, May 14, 2021, in Chicago. (AP PhotoCharles Rex Arbogast)