On Pittsburgh manager Clint Hurdle's challenge, the play was reviewed and the call overturned as replays indicated Overbay's left foot was not on the bag when he gloved Gennett's toss as Marte slid back in.
The Pirates thus retained their challenge. The game moved into the third inning in a scoreless tie.
Tom Singer is a reporter for MLB.com and writes an MLBlog Change for a Nickel. He can also be found on Twitter @Tom_Singer. This story was not subject to the approval of Major League Baseball or its clubs.