Houston Rockets owner Leslie Alexander donated $4 million to the Hurricane Harvey Relief Fund started by Mayor Sylvester Turner, the team announced.
"Our hearts are heavy seeing the devastation that so many of our friends, family and neighbors are experiencing," the Rockets said in a statement.
Alexander's donation was one of several pledged by teams and athletes to aid victims of flooding in Houston, including a $50,000 pledge by Rockets point guard Chris Paul to Texans defensive end J.J. Watt's online fundraiser.
Paul's donation pushed the total raised by the fundraiser to $500,000.