Is Shane Greene a Rick Porcello clone? Not really. This is why not
Instead, Greene has been a groundball machine much like Porcello. especially tonight.
Greene's fastball velocity is down from last season when he was with the Yankees, from 93.5 to 92.4 according to PITCHfx with his four-seam (straight) fastball, and 92.7 to 91.4 with his two-seamer (sinking fastball). That was before tonight when he has thrown with roughly the same velocity and induced so many groundouts. Greene entered Sunday striking out just 5.6 hitters per nine innings after striking out slightly more than a hitter per inning last season (9.3 per nine innings).
By the way, Porcello's velocity is roughly the same with the Red Sox as it was with the Tigers, in the 90 to 91 mph range with both his four- and two-seam fastballs.
Greene still throws considerably harder than Porcello.