The ejection came a few seconds after Toronto third baseman Josh Donaldson struck out to end the third. Donaldson tried to check his swing on back-to-back pitches but, in both cases, Gibson called the strike without asking for help from first-base umpire Mike Winters.
"I was just walking out there because I wanted to discuss something with him," said Gibbons, who added his initial goal was to play the role of peacemaker. "All I said was, 'Hey, can I talk to you for a minute?' He might have misinterpreted that, but he threw me out.
"The old fall back, I get it, you can't argue balls and strikes, I've heard that before. But really all I was going to do was going to temper some things down a little bit, say 'Hey, he's a very intense guy.' Gibson is one of your more intense umpires, too."
It marked the fifth time this season Gibbons was ejected from a game, but this one might have been the most surprising one yet. What was supposed to start off as a cordial conversation quickly escalated -- with both men screaming at each other on the field.
"I'm not always the clearest guy to understand, but that is what I did say," Gibbons said, when asked to clarify if all he did was ask to talk prior to the ejection. "Basically, I told him, 'This isn't about me and it isn't about you. Get some help because I don't think he went on that second one.'
"That's a tough call, I get it. There were some calls later in the game that got appealed. I thought it was rinky dink myself, but you always have that fall back plan with you can't argue balls and strikes. But it wasn't balls and strikes, it was a checked swing."
Gregor Chisholm is a reporter for MLB.com. Read his blog, North of the Border, follow him on Twitter @gregorMLB and Facebook, and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.