While star players such as Bryce Harper, Manny Machado and Craig Kimbrel sit at home waiting for a 2019 (and beyond) contract, this happened earlier this week:
The Philadelphia Phillies and starter Aaron Nola are in agreement on a four-year, $45 million deal that includes a club option for a fifth season, league sources tell ESPN.
— Jeff Passan (@JeffPassan) February 13, 2019
Nola was to be in his first arbitration year in 2019, so this contract buys out all his arb years and at least one and possibly two of his first years of free agency.