This is a match between an efficient road team on short rest and a winless home team whose problem is defence, not effort. The gap between them comes mostly from results so far, and the schedule narrows it.
Indiana is 2-1 and has shot about half from the field and 37% from three over its recent box scores, with a 27-point win at Brooklyn. Milwaukee is 0-3 and has conceded 127, 128 and 132, while shooting only about 32% from three.
The key matchup is Indiana's hot shooting against Milwaukee's leaky defence, but a shooting window like that tends to cool, and Milwaukee's poor three-point rate is more likely to rise than fall.
Indiana is on the second night of a road back-to-back, with about one day of rest against Milwaukee's two. Zubac and McConnell are both listed as doubtful. Milwaukee's own absence list is empty, which I treat as a data gap rather than proof of good health.
I expect an open game that stays within a couple of possessions, with Indiana's tired legs and bench minutes mattering late. That's why I'm siding with Milwaukee, the home underdog, to stay within the number.