UFC welterweight champion Georges St-Pierre is VADA-approved for his upcoming title fight with Johny Hendricks at UFC 167.

St-Pierre posted a letter from the anti-drug testing company stating his September results both came back negative. VADA randomly, and unannounced, shows up to conduct tests.

“I’ve been through 3 unannounced anti-doping controls by The Voluntary Anti-Doping Association since Sept. 1st,” GSP wrote on Twitter. “My samples have been analyzed by the WADA-accredited UCLA Olympic Analytical Lab.”

Both GSP and Hendricks have been going back-and-forth in regards testing procedures for the past few months.