Fans of "Good Morning America" noticed ESPN's Joe Buck was taking over hosting duties this week. Here's what's going on.

But not on July 23 through July 25. No, you're waking up and seeing the legendary Joe Buck -- the play-by-play voice for ESPN ...

Joe Buck is the host replacing George Stephanopoulos while he takes time away from GMA. This is what we know about him ...

"Good Morning America" fans noticed George Stephanopoulos' absence from the show this week. Joe Buck is filling in as a ...

As George Stephanopoulos enjoys some time off from Good Morning America, fans of the ABC morning show are voicing their dislike of his current replacement.

Joe Buck and Michael Strahan's awkward on-air hug on GMA sparks buzz online, leaving fans talking about the cringeworthy moment.

Good Morning America' viewers have noticed Robin Roberts' recent absence from the show — but how long will she be gone?

ESPN personalities Joe Buck and Malika Andrews will be guest hosts on ABC's "Good Morning America." (AP Photo/David Kohl, File) AP ...