Larry Baer, the chief executive of the San Francisco Giants, has been suspended without pay until July over a video that shows him involved in a public altercation with his wife, the commissioner of Major League Baseball announced on Tuesday.

Mr. Baer has been on a leave of absence from the team since March 4, time away that the league said would now be converted to an unpaid suspension. During the approximately four-month suspension, which goes through July 1, Mr. Baer “shall have no involvement in the operations of the Giants.” The team will be put under the control of someone selected by the team’s ownership group, a statement from Major League Baseball said.

In the meantime, Mr. Baer must be evaluated by an expert to determine an appropriate treatment and counseling plan, the statement said.

The baseball commissioner, Rob Manfred, said league investigators had reviewed video footage of the March 1 episode, in which Mr. Baer was seen lunging for a cellphone in his wife’s hand and forcefully grabbing her. They struggled, and she fell to the ground.