Retired basketball player Jason Kidd, who was recently hired as the head coach of the Dallas Mavericks, disciplined a player who was using an Android phone in the team's group chat, Indy 100 reports.

As a coach of the Milwaukee Bucks, the Hall of Famer gained a reputation for being a hard-nosed taskmaster and took seriously the team’s group chats. Kidd was incensed when former Bucks center Thon Maker caused an error in the team's group chat by using an Android instead of an iPhone, causing the chat to turn green in color.

According to an excerpt in the upcoming book Giannis: The Improbable Rise of an NBA MVP, authored by Mirin Fader, Kidd had a low tolerance for Android users.

"At one point center Thon Maker didn't have an iPhone, messing up the team's blue-bubble iPhone group chat," the book excerpt read. "Kidd was upset about it and made the team run because Kidd felt that Maker not getting an iPhone was an example of the team not being united."

Additionally, Fader writes that Kidd would punish the entire team if a single player made a mistake. During practice, if one player made an error, Kidd would make all the other players run sprints while the player who made the infraction watched from the bench. 

Kidd used both physical and psychological tactics in an attempt to get his team on one accord. According to the coach's philosophy, he believed his strategy of physical punishment on the team would inspire his players to hold each other accountable. He also hoped that the punishment would create a deeper sense of mental focus on the player who made the error. 

During Kidd’s four-year stint in Milwaukee, the Bucks finished 139-152 and failed to get past the first round in the playoffs. He was fired during the halfway point of the  2017-18 season. 

After being released by the Bucks, Kidd spent the next two seasons as an assistant coach with the Los Angeles Lakers, winning a championship in the 2019-2020 season as a member of the coaching staff.

Giannis: The Improbable Rise of an NBA MVP will be released on Aug. 10, 2021.