The San Francisco Giants added a special pitcher to their roster for the day. It was small -- yet fierce -- Hailey Dawson, who has a 3D-printed hand.

Last fall, we were introduced to Hailey Dawson because she had a dream. Despite being born without three fingers on her throwing hand, she set a goal to throw out a first pitch at every MLB stadium. With help from a prosthetic hand made with a 3D printer, Hailey even threw out the first pitch before Game 4 of the 2017 World Series.

Hailey Dawson took another step towards her goal of throwing out a first pitch in every Major League Baseball stadium.

The San Francisco Giants added a special pitcher to their roster for the day. It was small -- yet fierce -- Hailey Dawson, who has a 3D-printed hand.

On March 31, Hailey Dawson will throw out the first pitch at Petco Park for the San Diego Padres with her UNLV-created 3D printed hand.

Hailey Dawson of Las Vegas is 7 years old, a huge baseball fan, and has made it a goal to throw out the ceremonial first pitch at all 30 MLB stadiums.

A girl with a 3D-printed hand threw out the first pitch Saturday in game 3 of the Padres Opening Day series against the Milwaukee Brewers.

Thursday marks Opening Day for Major League Baseball.

The "Pink Out" basketball game at Tarkanian Middle School is the biggest game of the year - an annual battle between Tarkanian versus their rival, Canarelli Middle School.

Hailey Dawson has opened up professional sporting events before, but never in her hometown.

7-year-old with Poland Syndrome helps Golden Knights celebrate Hockey Is For Everyone Month.

After throwing the ceremonial first pitch at Game 4 of the World Series, Hailey Dawson, a 7-year-old with a birth defect that robbed her of three right-hand fingers, is expanding into hockey.