Chicago at Milwaukee

Kyle Harrison has been one of the best pitchers in the National League this season — 8-1 with a 2.50 ERA, a genuine Cy Young contender who held Chicago to two runs last night in the series opener. None of that is in dispute, and the Cubs arrive in Milwaukee carrying an injury-riddled rotation that has been scrambling for arms for months. But David Peterson makes his Cubs debut tonight, and the numbers he posted in New York — an ERA north of seven in his starts — don't tell the full story. The underlying numbers that strip out defense and luck put him considerably closer to a quality three-run performance, and the gap between those two figures may be the largest among qualified starters in baseball this season. Chicago's elite infield defense can make that difference real, and Peterson's ground-ball rate ranks second among all starters with meaningful innings. That combination does not make him an ace. It makes him a functional starter with a real path to keeping this game within reach. The Cubs have won 10 of their last 13 games and are playing with confidence. At this price, you are buying value on momentum against a great pitcher on a night where he may not need to be beaten outright for this ticket to cash. Back the Cubs tonight.