MLB commissioner Rob Manfred began work on Sunday.
There is a new signature on the official MLB baseballs.
As of Sunday, "Robert D. Manfred Jr." officially became the stamped signature on all game balls to be used in MLB games.
Rob Manfred became baseball's 10th commissioner on Sunday when he succeeded Bud Selig, who is now commissioner emeritus after serving in the top post for more than 22 years.
"You have no idea how many questions I've gotten about the baseballs," Manfred told MLB.com "It's interesting. I never thought about the baseballs. I was so caught up in the election and trying to do my job. And the day after [being elected commissioner in] Baltimore, Howard Smith (MLB's senior vice president of licensing) came down to get my signature so they could begin to produce mock-ups of baseballs and choose one.
"And it really hit me that day - what an absolutely unbelievable thing it is to have your name on the balls that are used in Major League Baseball. I mean, it really just hit me like a ton of bricks."
Manfred, 55, was unanimously elected as commissioner by the 30 MLB owners in August 2014.
He became MLB's executive vice president of economics and league affairs in 1998 and parlayed that into a bigger role in 2012 as the vice president of economics and league affairs.
In September 2013, Manfred was promoted to chief operating officer.