It's hard to forecast how well Rafael Devers will age.
At Monday's press conference, when asked point-blank, Devers said he weighs 240 pounds.
Through his age 27 season, Devers has posted 22.5 bWAR in 980 games with an OPS+ of 126.
Through his age 27 season, third baseman Pablo Sandoval had posted 20.4 bWAR in 869 games withj an OPS+ of 123.
Following his age 27 season in 2014, Sandoval signed a five-year, $95 million contract with the Red Sox. Devers has nine years and $289.2 million remaining on his contract.
In their age 27 seasons, Devers and Sandoval posted 3.7 and 3.2 bWAR, respectively, with Devers trending somewhat better than Sandoval.