They've already traded for starter James Paxton and signed free agent infielders Troy Tulowitzki and DJ Lemahieu, among other moves.
Well, the number one guy beating the Bryce Harper to Philadelphia drum all along, Bob Nightengale, is changing course a little bit.
Plus, a source told NBC Sports Bay Area's Alex Pavlovic that San Francisco did not offer Harper a contract when the sides met last week in Las Vegas. "It's a two-team race here".
Bryce Harper #34 of the Washington Nationals bats against the San Francisco Giants at AT&T Park on April 25, 2018 in San Francisco, California.
San Francisco is coming off two of their worst seasons in a decade, but they improved to win 73 games previous year.
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"With the Giants moving in and all the optimism, I do believe it's a coin flip".
The Giants are reportedly interested in offering Harper a massive short-term contract, while the Phillies could give him the long-term deal he's seeking.
Nightengale said Harper's decision will ultimately come down to the all-mighty dollar.
There's also skepticism among some parties involved in the Giants-Harper conversation that San Francisco can generate the kind of offer the slugger is looking for, reports ESPN's Buster Olney.
Take from all of this what you will. Nightengale has been on top of the Harper story since the offseason began and he's one of the best insiders in baseball.