I already knew where he was on return because I use ATP profiles to get the big picture.
https://www.atpworldtour.com/en/players/daniil-medvedev/mm58/player-stats
22% of games on return for career. If you get lazy and only check AS, it usually is the same as HCs because grass and clay will cancel each other out.
Now look at 78% of service games. There is the past problem. Add 78 and 22, you get 100, which is around 50% of games. It's no surprise he has 50% of points, because those two stats are connected. That's an average player who will never go anywhere without getting those numbers up.
Now check this year:
https://www.atpworldtour.com/en/players/daniil-medvedev/mm58/player-stats?year=2018&surfaceType=all
79/23, so figure 102, 51% of games, somewhere around 50.5% of points. Not much more impressive.
So who is this new monster we saw last week?
It looks to me like someone tweaked the serve. I seem to remember that at some point Roddick changed something in his delivery or windup, or something like that, and suddenly he had the Roddick serve that everyone feared. I guess sometimes things snap into place. The serve I saw last night would earn him games in the high 80s, and when the serve gets a lot better, return games get better because there is more energy there to break.
I don't fully believe it yet. I have to see him hold onto this "new game", but if he does, look out world.
@Meles saw it first. I saw him tear the wings off Shapo, but at that point I thought it was just Shapo running out of gas.