CLEVELAND -- Indians owner Paul Dolan has joined the team's shaved head club.

Several players shaved their heads last month in support of infielder Mike Aviles, whose 4-year-old daughter, Adriana, has been diagnosed with leukemia.

Aviles shaved Dolan's head with barbershop clippers in the Indians' dugout prior to Sunday's game against the Baltimore Orioles. Several players, front office employees and reporters watched as Aviles carefully did his handiwork, which took about 10 minutes to complete.

The Indians tweeted out images of Dolan's transformation.

"We've seen how the team has stepped up for Mike and his family and what they're going through," Dolan said. "I'm really proud of that. This is sort of my way of joining the team and supporting Mike, and really supporting what the guys have done for Mike."

Dolan said this is the first time he's had his head shaved.

"The first shower will be interesting," he said. "It's kind of weird running my hands through my hair, or lack of hair. It was a little shocking when I saw my reflection. I used to have a big, thick head of hair. I'm counting on it coming back eventually."

Aviles was placed on the family emergency medical leave list after the diagnosis in early May. Adriana, who will undergo chemotherapy, was treated at the Cleveland Clinic and has since returned home.

The Associated Press contributed to this report.