NEW YORK (AP) — The man who oversees the NFL’s drug program says the players’ union has “buyer’s remorse” about HGH testing.

A union official says “the only thing” the league cares about “is power.”

Ah, just another day in the squabbling between the NFL and players over how to put in place blood testing for human growth hormone. Thursday’s latest public back-and-forth, featuring NFL Senior Vice President Adolpho Birch and NFL Players Association spokesman George Atallah, comes exactly two weeks before the first game of the 2013 regular season.

Two full seasons already have come and gone since the NFL collective bargaining agreement signed in August 2011 paved the way for blood testing for HGH.