SAN FRANCISCO -- If you had walked up to Giants president of baseball operations Farhan Zaidi half an hour before the July 31 trade deadline and asked him who his 2020 closer would be, he likely would have said Sam Dyson. That's how much faith Zaidi had in the right-hander, who ended up going to Minnesota in the final minutes before the deadline and suffered a shoulder injury that might keep him out all of next season.

Zaidi said Tuesday that he has no concerns about a potential MLB investigation. The Twins had looked into whether the Giants knew Dyson had a sore shoulder when they dealt him to Minnesota for three prospects, including outfielder Jaylin Davis.

"From a record standpoint, injury standpoint, our guys do a great job and we didn't have any concerns from that standpoint," Zaidi said. "You always want trades to work out for both sides. We traded three relievers and two of them (Mark Melancon and Drew Pomeranz) have pitched as well or I think exceeded expectations for their club and I think unfortunately with Sam it hasn't gone as well."

Dyson gave up nine runs in 11 1/3 innings for the Twins before getting shut down. He reportedly told the Twins that his shoulder was sore in July. Surgery to repair his shoulder capsule will likely make him a non-tender this offseason and could threaten the 31-year-old's career.

Zaidi said he felt for the Twins and Dyson, who had a 2.47 ERA before the trade. He said the reliable Dyson was the hardest pitcher to part with and pointed out that -- after the deadline -- Reyes Moronta suffered his own shoulder injury, Trevor Gott had forearm tightness and groin surgery, and Tony Watson suffered a season-ending wrist fracture.

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"That's some of the uncertainty and the occupational hazard of being a Major League pitcher," Zaidi said. "I'm disappointed for Sam and for the Twins, obviously, but from a standpoint of anything untoward about the deal, there are no concerns about that at all."