WASHINGTON — Vengeance is mine, sayeth the Lord. And although retribution shall surely come in the fullness of time, a ballplayer can only wait so long. Accordingly, when Boston slugger David Ortiz came to bat against Tampa Bay’s David Price at the end of May — for the first time this season — Price fired the very first pitch, a 94 mile-an-hour fastball, square into Ortiz’s back.