New commissioner Rob Manfred has not only publicly endorsed radical changes to the game during his first days on the job - he's apparently presented the players with several ideas to consider as well.

Major League Baseball recently sent the union a list of potential changes to the sport that included lowering the mound and adjusting the strike zone, according to Ken Rosenthal of FOX Sports.

Rosenthal described the presentation as a "package of data," and noted that no formal talks or negotiations have taken place. A source told FOX Sports that none of the ideas have progressed to an official proposal.

The list reportedly included information on lowering the mound, moving in the fences at every park, wrapping the ball tighter to make it travel further, adjusting the strike zone, and adopting the designated hitter in the National League.

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Manfred, who has made no secret in his desire to speed up the game and improve offense, has already discussed a possible ban on shifts and use of a pitch clock.

In an interview with the New York Times on Sunday, Manfred downplayed the possibility of expanding the use of a DH.

"I can't see the American League clubs giving it up, and right now, given the composition of our National League owners, I don't see them buying into it," he said. "So I think we’re staying where we are."