Rob Manfred thinks Major League Baseball may need to consider moving the trade deadline back to give teams in the hunt for a wild card more time.

A second wild card in each league was added in 2012, keeping more teams in playoff contention past the July 31 non-waiver trade deadline.

"I think that the July 31st deadline is something that we may want to revisit in the context of the revised playoff format," Manfred said. "Obviously when you have two additional opportunities to be in the playoffs, you have more teams in the hunt and they may want to wait a little longer before they make decisions."

"On the other hand, you've got to remember, we want teams that the core of which have been together for the year playing in the postseason," he added. "So you have to just balance those two issues, I think."