All-Star J.D. Martinez was given a shot on Tuesday to address lower back tightness that has delayed his debut with the New York Mets. Mets manager Carlos Mendoza said he spoke with Martinez, who has been working at the team's facility in Port St. Lucie, Florida, after signing a $12 million, one-year contract on March 24. Mendoza said Martinez, 36, experienced similar lower back soreness following spring training last season with the Los Angeles Dodgers and added "he's feeling it again."