Michael Paull, a long-time digital media veteran who spent the last three years heading up Amazon’s ambitious video efforts, is joining Major League Baseball’s streaming service.

Paull is now CEO of BAMTech, the tech and video streaming arm that helps the league, as well as clients like NHL and HBO, stream content online.

BAMTech, which spun out of MLB Advanced Media, was valued at $3.5 billion last year after Disney — which owns ESPN — announced that it would buy a 33 percent stake in the unit. It currently serves more than 7.5 million people who use the platform to stream content online. In addition to the NHL and HBO, other clients include the PGA Tour, WWE Network, Riot Games, Ice Network, and more.

Paull joined Amazon in 2012 after working at Sony Music Entertainment as its executive vice president of global digital business for four years. He ran Amazon’s content and digital music store for two years before taking a role in Seattle as Amazon’s vice president of digital video, where he ran Amazon Channels and helped grow Prime Video.

Paull is expected to help ESPN launch its over-the-top sports subscription service.

“The team at BAMTech has created a best in class Over-The-Top video streaming platform allowing them to develop innovative solutions for their customers,” Paull said in a statement.

Paull, who will relocate to New York, takes over for Bob Bowman, who remains with the league as president of business and media.

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