Remember when Nadal was going for The Rafa Slam and Laver said if he wins (the 2011 AO) it would be a "mini-slam" :lol:
To be fair, although he does seem to admire Djokovic more than Nadal, he hasn't really changed his tune on what constitutes a true Grand Slam.
Before
Australian Open 2011:
"There's a good chance he [Nadal] could pull it off. But it's not a grand slam, certainly," Laver said. "People will say, 'he's going for a grand slam' and I say, 'no, he's not doing that.' That wasn't the way this whole thing was set up. It starts in January and ends in September; starts with the Australian Open and ends with the US Open. Still, what he's trying to do is a great effort. It's not a grand slam, but it's a great effort."
After
French Open 2016:
"I think he's got a good shot at pulling it off and I'd be happy seeing it. You don't own the territory. It's a feather in his cap if he can pull off a Grand Slam. He's got two [of the four] already." While Djokovic's four straight major titles aren't the ultimate slam, "owning the four at one time, it's one hell of an effort," Laver said.
So a more reverent tone when discussing Djokovic's achievement, but his view is the same (Grand Slam = 4 in one season).