Neither team has named a starter for Monday's 6:40 PM ET first pitch at Citizens Bank Park, so the pitching matchup card above will get filled in as the week progresses. What's already established is that Philadelphia's rotation has been the backbone of this team's turnaround — Zack Wheeler is 7-1 with a 2.11 ERA and posted a 1.82 ERA across 4 June starts. Wheeler takes his turn this weekend and won't factor into Monday, but the arm the Phillies slot in inherits a staff that has been pitching at an elite level all month. Pittsburgh's rotation is carrying its own uncertainty heading into the series. Jared Jones is listed as day-to-day, which adds complications to the Pirates' weekend schedule before they've even reached Monday. The bullpen behind whichever arm draws the assignment is also patchwork — Wilber Dotel, Chris Devenski, Oddanier Mosqueda, and Mike Clevinger are all on the shelf, meaning the backend of Pittsburgh's pitching staff is thinner than they'd like walking into Citizens Bank. The Pirates have won 2 straight and 3 of their last 5, and there's real offense in this lineup when it's firing — an 11-1 demolition of Seattle last week showed what they can do. But the absence that defines Pittsburgh's ceiling right now is Oneil Cruz. The center fielder was having one of the best seasons in Pirates history before a broken left hand ended his June: .264/.350/.472 with 14 home runs and 21 stolen bases. GM Ben Cherington has put his timeline at 4-6 weeks, which rules him out for this trip to Philadelphia. Jake Mangum has held the spot capably, but no one on this roster replaces what Cruz does in the middle of the lineup. The Phillies got here the hard way. They were 9-19 to start the year and looked like a team in free fall. Now they're 45-36 and within 4.5 games of Atlanta in the NL East. Kyle Schwarber has been a primary engine — 29 home runs on the season (tops in the majors), slashing .324/.439/.632 in June alone with 7 of those homers coming this month. Monday is exactly the kind of home spot where a team with real momentum makes a short-handed opponent pay early and often. Philadelphia's lineup has the depth to punish whoever Pittsburgh sends to the mound.