The Philadelphia Phillies have reportedly agreed to acquire Luis Arraez, one of baseball’s best pure hitters, from the San Francisco Giants, according to reports from MLB.com and ESPN, both citing sources close to the deal. The move, reported the morning of Monday, August 3, 2026 — the day of Major League Baseball’s trade deadline — would also bring right-handed reliever Caleb Kilian to Philadelphia. As of this reporting, it’s still a deal sourced to people familiar with the talks, not something either club has put its name to. It’s the kind of splashy, win-now move a team makes when it thinks it has a real shot at the playoffs.
Neither the Phillies nor the Giants had officially confirmed the trade at the time it was reported. The deadline for teams to make deals falls at 6 p.m. Eastern that same day, so there’s still time for the terms to shift before anything becomes final.
Key facts
- Phillies get: 2B Luis Arraez and RHP Caleb Kilian
- Giants get: pitching prospects Ramon Marquez and Marty Gair
- Arraez’s 2026 stats: .324 average (tops in NL), .801 OPS, 4 HR, 43 RBIs in 105 games
- Kilian’s 2026 stats: 4.26 ERA, 53 strikeouts in 44⅓ innings; still has rookie eligibility
- Arraez’s contract: one year, $12 million, set to become a free agent after 2026
- Status: Not yet officially confirmed by either team
What the Phillies are getting
Arraez, 29, is a three-time batting champion — once with Minnesota, twice with Miami — and a four-time All-Star. According to MLB.com’s report on the trade, he was hitting .324 this season — tops in the National League and second in all of baseball behind Houston’s Yordan Álvarez — with an .801 OPS, four home runs and 43 RBIs over 105 games for the Giants. He’s also graded well defensively at second base. In short: the Phillies are getting a guy who almost never strikes out and almost always finds the barrel of the bat.
Kilian, the other piece coming to Philadelphia, has a 4.26 ERA and 53 strikeouts in 44⅓ innings for San Francisco this season. He still has rookie eligibility, meaning the Phillies could control him for several years beyond this one — a longer-term add tucked inside a deadline-day headline grab.
What the Giants get back
San Francisco is reportedly getting two Phillies pitching prospects: 20-year-old right-hander Ramon Marquez, ranked as Philadelphia’s No. 4 prospect by MLB , and Marty Gair, a reliever pitching in High-A. It’s the kind of return that signals a club selling a rental — Arraez’s contract runs out after this season — for young pitching to build around.
The contract question
Arraez is playing this season on a one-year, $12 million deal he signed with the Giants over the winter, and he’s set to become a free agent after 2026. No progress on a contract extension had been reported as of this reporting, so for now this is a trade for a few months of one of the league’s best hitters, not a long-term answer at second base.
Where does this leave the Phillies’ infield?
Arraez plays second base, and the Phillies already have Bryson Stott there — which means someone has to move. The most commonly reported plan works like a chain reaction:
- Stott shifts from second to third base
- Current third baseman Alec Bohm moves over to first
- Bryce Harper heads back out to right field
That’s not the only version floating around, though. Other reporting, from The Athletic’s Matt Gelb, has Stott going to shortstop instead, with Trea Turner — the team’s longtime shortstop — sliding out to the outfield and Arraez playing second. None of it appears settled yet.
There’s also been talk that Bohm, who’s playing out the final guaranteed year of his contract, could simply be traded rather than moved around the diamond — but no team had been reported as agreeing to take him as of this trade.
For what it’s worth, Arraez has made clear where he wants to end up: back in July, he told MLB.com he wanted to stay at second base if he was moved at the deadline and had no interest in returning to first.
A second trade, same day
In a separate deal, the Phillies also reportedly added left-handed reliever Brooks Raley from the New York Mets, sending outfield prospect John Spikerman and right-hander Luke Gabrysh to New York. Between the two deals, Philadelphia added a middle-of-the-order bat, a controllable young arm and bullpen help on the same afternoon — the kind of aggressive, win-now shopping teams do when they think they’re close.
Why the Giants are selling
The Giants had fallen out of playoff contention and were widely seen as sellers heading into the deadline, making Arraez — a star hitter on an expiring contract — one of the more logical trade chips on the board.
For now, Phillies fans have a name to get excited about and a lineup puzzle still being worked out. Both should become clearer once the trade is made official and the dust settles on deadline day.