This time, the referee went after the coach. Veteran NBA referee Tony Brothers had to be held back from confronting Timberwolves coach Chris Finch in a shocking scene Friday night during Minnesota’s home 115-108 Game 3 loss to the Spurs. Finch then called out the veteran official for his actions. “Pretty unprofessional, huh?” Finch said after the game. The tense moment happened with a little more than five minutes remaining in the fourth quarter with the when Finch attempted to call a timeout with his team trailing 102-100. Finch believed Brothers delayed in granting the timeout with 5:09 left and voiced his displeasure, walking toward the referee and giving him his thoughts. Brothers did not back down before being intercepted by a Minnesota player. “I wanted the timeout. I had called it three seconds earlier and I wanted the timeout. I said, ‘I want my three seconds back,'” said Finch, whose team fell in a 2-1 series hole. “He clearly heard me.…