Ken Blaze-USA TODAY Sports

Veteran right-handed reliever Tyler Duffey will join the Royals for tonight’s game against the visiting Blue Jays, reports Jon Heyman of the New York Post. The team will need to formally select Duffey’s contract.

Kansas City already has an open spot on its 40-man roster. The team announced over the weekend that right-hander Jordan Lyles has been placed on the temporarily inactive list to tend to an undisclosed personal matter. Their transaction log at MLB.com further specifies that Lyles has now been moved to the restricted list — a procedural move that’ll open a 40-man roster spot while he’s away from the club. The 33-year-old Lyles has had a nice start to his season, tossing five shutout innings after moving from the rotation to the ’pen. He’s fanned three hitters and allowed only two hits and two walks.

Duffey, also 33, was a staple in the Twins’ relief corps from 2017-22 and peaked as a high-end setup option in Minnesota from 2019-21. Over that three-year period, he tossed 144 innings with a 2.89 ERA while punching out 29.8% of his opponents. Duffey’s fastball dipped in 2022, however, and his results slipped along with that loss of velocity. He yielded a jarring eight home runs in 44 innings while pitching to a 4.91 ERA before being designated for assignment and cut loose. Duffey pitched two innings out of the Cubs’ bullpen last season but spent the rest of the year with their Triple-A affiliate in Iowa, where he posted a 3.47 ERA in 49 1/3 frames.

The Royals signed Duffey to a minor league contract over the winter. Upon reporting to spring training he had a health scare, when his intake physical revealed a cancerous mole on his shoulder. The right-hander underwent a procedure to remove that melanoma, and he’s thankfully been cancer-free since — though at the time he revealed the issue to reporters, he noted that he’d be receiving routine checks for the foreseeable future.

Duffey has had a nice start to his season in Triple-A Omaha, pitching 8 1/3 innings and allowing three runs (3.24 ERA). He’s walked too many hitters, dishing out a free pass to five of his 37 opponents (13.5%), but he’s also whiffed 10 (27%) and kept the ball on the ground at a hearty 54.5% clip.

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