A routine fly ball turned into one of the most confusing plays of the season Monday night at Rogers Centre, as the Boston Red Sox scored a run on a sacrifice fly that violated a fundamental baseball rule — and the umpires let it stand.

With the Blue Jays leading 2-0 in the seventh inning, Boston had one out and Anthony Seigler on third base. Ceddanne Rafaela lifted a fly ball to center field. For reasons still unclear, the scoreboard displayed two outs. Seigler, believing the ball would fall for a hit, broke for home. Nick Sogard, the runner on first, also took off. When center fielder Brett Bateman caught the ball, Toronto quickly relayed to first base, doubling off Sogard. That should have been the third out, and Blue Jays players began heading to the dugout.

But plate umpire Charlie Ramos did not signal the end of the inning. Instead, he waved off the run, sparking confusion. Boston interim manager Chad Tracy said, “We kind of got a break there." Blue Jays skipper John Schneider explained, “Everyone assumed the inning was over when Charlie waved off the run, and during all that confusion, I was never given the opportunity to appeal Seigler not tagging up from third."

Umpires huddled for 17 minutes, consulting with MLB’s replay center. Crew chief Chris Guccione later explained the ruling: “We felt like it was our obligation to correct the error for not scoring the run originally. The rule is the rule." Because Seigler crossed home plate before Sogard was called out at first, and Toronto never appealed the missed tag-up at third before leaving the field, the run counted.

Schneider acknowledged the rule but disagreed with the timing. “Now, if we had just thrown the ball to third instead of first, obviously different story," he said. "After consulting with MLB, they told me that all of my players were across the third base line before Charlie waved off the run, which I 100% disagree with. I don’t know if Vlad is that fast after he got the ball at first."

Some Blue Jays players had already turned toward the dugout when the relay to first was made. Toronto reliever Simeon Woods Richardson and catcher Brandon Valenzuela were walking off the field before second baseman Josh Smith threw to first baseman Vladimir Guerrero Jr. The confusion extended to both sides. Tracy noted, “It was a weird, very weird situation, where the players on both sides seemed to be confused on the outs."

Schneider said, "Going forward, when that play happens again in the next 100 years, if it’s us, we will record the lead out at third. That’s the best I got." The run ultimately did not affect the outcome, as Toronto held on for a 2-1 victory. But the bizarre play will be remembered as a textbook example of how a simple miscommunication can unravel a game.