Who is P.J. Walker? Quick facts about breakout XFL QB Unknown 18:09 Houston's quarterback turned heads with his performance in the team's inaugural game. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsMartinez scores to lead Atlanta United past Vancouver 1-0NFL quarterback rankings for 2019: Best to worst, 1-32Toronto FC takes 35 shots in 0-0 tie against DC UnitedGuzman, Calhoun go deep as Rangers roll past Royals, 6-1Padres manager Andy Green on the offensive struggles after 2-0 lossKenta Maeda strikes out 12 and records a pair of RBI
