Question: who are red sox free agents?
Answer: J.D. MARTINEZ. CONTRACT STATUS: Signed though 2022, but can opt out after 2019 season for $2.5 million buyout. ... 
RICK PORCELLO. CONTRACT STATUS: Contract expires after 2019 season. ... 
CHRIS SALE. CONTRACT STATUS: Contract expires after 2019 season. ... 
XANDER BOGAERTS. ... 
MITCH MORELAND. ... 
STEVE PEARCE. ... 
EDUARDO NUNEZ. ... 
BROCK HOLT.