Story highlights Special agent David J. Bailey's appearance was a surprise

Major League Baseball's chief baseball officer presented the game ball

Washington (CNN) A Capitol Police officer who risked his life responding to Wednesday's attack on a Republican baseball practice threw the first pitch at the Congressional Baseball Game Thursday.

Major League Baseball executive Joe Torre presented the game ball to special agent David J. Bailey, who walked onto the field on crutches to loud applause before throwing the first pitch -- while putting most of his weight on his left foot.

Although he did not suffer a gunshot wound, Capitol Police said Wednesday that Bailey was treated for a minor injury.

Capitol Police Officer David Bailey, who was shot at Wednesday's practice, throws out the first pitch before the Congressional Baseball Game pic.twitter.com/ObKaVH3v1L — OutFrontCNN (@OutFrontCNN) June 15, 2017

The other Capitol Police agent who was on site yesterday when shots were fired, Crystal Griner, was shot in in the ankle and remained hospitalized Thursday.

The ball was taken to the hospital and signed by Matt Mika, a lobbyist and former congressional staffer who was shot during Wednesday's shooting, a friend of Mika's wrote on Twitter.

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