There was a close call at first base, and Kyle Jensen was out at home plate on a play the Marlins felt catcher Jhonatan Solano might have missed the tag.
"We didn't have a good angle on it," Redmond said. "There were only three angles. But it looked like he might have missed him, didn't tag him."
In the Marlins clubhouse, video coordinator Cullen McRae is reviewing plays, and relaying questionable plays to Redmond in the dugout.
Redmond said he is getting in touch with McRae about 10 seconds after seeing the review. In general, Redmond feels bang-bang plays at first base could be heavily challenged.
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter