If you’ve ever wanted to see two business titans duke it out, Sprint CEO Marcelo Claure and T-Mobile chief John Legere gave the public a front row seat on Twitter.  It was more of a schoolyard fight, rather than an all-out brawl. But both men had some choice words to say to each other.

The whole ordeal started Wednesday evening, when Legere sent out a tweet, poking fun at Sprint’s efforts to revamp their plan structure with its “all-in” campaign -- plans that cover unlimited talk, text and data for one price. For the most part it was just another one of the thousands of trash-talking tweets Legere has sent out through his Twitter account.

Claure didn’t take too kindly to it and responded with his own rant. But since Twitter limits posts to 140 characters, it spanned four lengthy tweets. 

Hours after Claure finished what he had to say, Legere picked a few choice words for his response.

Admittedly, this isn’t the first time the duo clashed on Twitter. In February, Legere started a flame war with Claure after Sprint aired an ad which offered to cut the bills of AT&T and Verizon customers in half if they switched, according to CNN Money.