I also think you're jumping the gun a bit. Sasha Zverev has hardly made the 2nd week of a Major, and he has 3 MS1000s trophies. Lajovic may be a good mid-pack guy, but I don't see anything special enough to put him in to contention even for the business-end of a big tournament. Do you really?
Zverev has not made the second week of a major due to his own fault. His shortcomings should not be projected in the rest of the field.
Moxie, I am aware that Lajovic is a mid-ranked player, and I am aware that reaching the 2nd week is a big achievement for anyone outside the top 8. But, yes, I do see something extra on the guy, that is why I am bothering to "champion" him a bit. As I posted a while ago, I have seen him play "live" here at SP three years ago and he called my attention back then. Saw already a few matches of the guy on TV (I would say 4 or 5) and liked what I saw. I thought "I would like to play exactly like this guy plays". Beautiful backhand, plays smart but attacks more than defends, nice attitude on court. Do I believe he will reach #1? Unfortunately no. I cannot even be sure he would reach top 20, even if last week I saw some glimpses of brilliance in his play. I am crediting his loss to Anderson due to nerves (while giving credit to Anderson's quality and big serve).
I guess his game is the classical clay court game. Solid, explores well the angles and a good, sustained offense. He is playing at a level consistent with the (early) second week of RG. So, if he avoids the top 4 seeds in the draw, I can "easily" see him reaching the second week. By "easily" I do meant he gets there easily, but that the scenario is likely (again, given a reasonable draw).