MLB commissioner Rob Manfred's tactic of going around to clubhouses around the league as he attempts to build support for a salary cap with looming negotiations for a new collective bargaining agreement was recently met with push back from Bryce Harper.

Baseball Commissioner Rob Manfred and Philadelphia Phillies star Bryce Harper had a spirited exchange during a question-and-answer session between the commissioner and the team, according to a person with direct knowledge of the conversation.

Bryce Harper told Rob Manfred to "get the f*** out of our clubhouse" if he wanted to talk about a salary cap, ESPN reported.