MLB commissioner Rob Manfred addresses pitch clock, payroll concerns Unknown 00:13 A 20-second pitch clock was implemented at the Double-A and Triple-A level in 2015. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsEl Clasico, Barcelona vs Real Madrid, highlights: Cristiano Ronaldo and Lionel Messi on target as match ends in a drawArsene Wenger quits Arsenal: A look at the Frenchman's most definitive XI during his 22 years at the clubEstoril Open: Portugal's Joao Sousa defeats Frances Tiafoe to become first home player to win tournamentPremier League: Olivier Giroud heads Chelsea to victory over Liverpool, keeps Champions League hopes alivePremier League: Arsenal give fitting farewell to manager Arsene Wenger with thumping win over BurnleyLa Liga: Lionel Messi, Cristiano Ronaldo on target as 10-man Barcelona keep unbeaten season alive with El Clasico draw