Tensions flared when Pittsburgh Pirates outfielder Tommy Pham and Toronto Blue Jays catcher Tyler Heineman got into a heated exchange that cleared the benches and bullpens during Monday's game at PNC Park. Even though cooler heads prevailed, many were left scratching their heads after the incident, wondering what exactly provoked it in the first place.
In the bottom of the seventh inning, Pham was walked by Jays reliever Brendon Little and proceeded to flip his bat before heading down to first base. He didn't make it too far, though, before turning back to exchange words with Heineman.