Adam Warren and Ryota Igarashi were called up to take their roster spots. You might have seen Igarashi before, either for the Mets the last two seasons, or in his one appearance with the Yankees June 8. But you haven't seen Warren unless you've scouted the minors.
Warren's career minor league ERA is 3.05, steadily increasing as he's moved up from low-A ball to Triple-A in the last three and a half years. In Scranton the last two seasons, Warren has a 3.70 ERA, striking out 170 and walking 80 in 238.2 innings.
Igarashi doesn't have the best track record in the majors, with a 5.75 ERA in 69 innings as a reliever with the Mets the last two seasons. He has impressed in the minors, however, sporting a 1.30 ERA in the last two seasons at the Triple-A level for the Mets, Blue Jays and Yankees.
Warren will make his major league debut in a start Friday against the White Sox and is projected to start Wednesday against the Rays and, thankfully, will miss the Red Sox series next weekend.