WATCH: Mets Shuffle Fair Ball To The Backstop, Argue With Ump, Allow Three Runs To Score

The New York Mets allowed things to go from bad to a lot worse on Sunday in a series against the Pittsburgh Pirates

Taijuan Walker and the Mets found themselves down 6-0 to the Pirates in the first inning Sunday following Jacob Stallings' walk-off grand slam Saturday night.

Returning from his All-Star Game appearance, Walker faced nine batters Sunday and retired just one, getting leadoff batter Adam Frazier to ground out.

The Pirates then went double, single, walk, double, walk, walk, infield single, walk to push across six runs — but that infield single is something you have to see to believe.  

It looks as though Walker thought the ball was rolling foul and flipped it away, but the home plate umpire deemed the ball fair, and the play continued. Watch below:

Mets manager Luis Rojas, who argued more aggressively than others, was ejected after the play. The aptly-named Walker then walked Pirates' JT Brubaker next and before being lifted from the game.

Kevin Newman's infield single and Walker's error — and all the time he spent arguing with the ump rather than retrieving the ball — allowed the bases to clear and Newman to advance.

But that wasn't the only play the Mets have to watch replays of later. There is also this:

What a weekend so far at PNC Park.