The 30-year-old Nunez is coming off one of his best seasons, as he hit .313 with 12 home runs, 58 RBI and 24 stolen bases split between the Red Sox and San Francisco Giants.
Nunez is set to enter his ninth MLB season, and he has no shortage of experience playing in the American League East.
He spent the first four years of his career with the Yankees before getting traded to the Minnesota Twins. After parts of three seasons in Minnesota, Nunez was traded to the Giants. San Francisco then dealt him to Boston last July.
Nunez is a versatile player who has spent time at every position except catcher, first base and center field in the majors.
He has made over 200 appearances at both shortstop and third base but also has experience at second base and in both left and right field.
Nunez was a major weapon for the Red Sox down the 2017 stretch, as he hit .321 with eight homers and 27 RBI in 38 contests before a knee injury in Game 1 of the ALDS knocked him out for the playoffs.
A return to Boston would make sense for Nunez, since second baseman Dustin Pedroia is expected to be out until May after undergoing knee surgery.
Nunez's best fit may be in New York, though, since the Yankees traded second baseman Starlin Castro to the Miami Marlins, dealt third baseman Chase Headley to the San Diego Padres and allowed third baseman Todd Frazier to reportedly sign with the New York Mets, per ESPN's Jerry Crasnick.
That leaves the Yanks with openings at both second and third, and while top prospect Gleyber Torres could fill one, Nunez would make sense at the other.
As for the Rays, Nunez would be a key figure in the lineup if they were to sign him. However, they aren't considered contenders in the AL East like the Red Sox and Yankees are.
Nunez is just two years removed from a career season that saw him hit .288 with 16 home runs, 67 RBI and 40 stolen bases en route to being named an All-Star for the first time.
He has played the best baseball of his career by far over the past two campaigns, and the fact he can contribute in so many areas will make him a quality signing.