The joke told to Matt Wisler was that his slider was similar to Hall of Famer Mariano Rivera's cut fastball.
"Yeah, I wouldn't go that far," Wisler said with a snort, "but I throw it about as much as he threw his cutter. So why not?"
Wisler then chuckled. He's nowhere near to being as dominant and as unhittable as Rivera was for years with his cutter, but the Twins have encouraged Wisler to throw his primary weapon, the slider, over and over … and then some more.
Wisler is finding a way to stand out among his fellow major league relievers by throwing his slider a ridiculous 81.3% of the time, the most of any pitcher, according to Statcast. The next player on the list, San Diego's Taylor Williams, throws his slider 54% of the time.
Wisler has thrown 222 sliders and 50 fastballs. Many pitchers spread out their arsenals more evenly, some might have more lopsided usage patterns.
Then there are pitchers like Wisler.
Of the 222 sliders Wisler has thrown, only one has been barreled, a home run by Kansas City's Ryan McBroom on Aug. 7. In 16 innings over 10 games, Wisler is 0-1 with a 1.08 ERA. He has been the "opener" for the Twins three times — a role the righthander might play in Friday's doubleheader with the Tigers — and got his first save in Tuesday's 3-2 victory over the White Sox.
"The one thing why I think my slider is so effective, talking to catchers, it doesn't move the same," Wisler said. "One pitch it will go straight down and the other one goes more side to side. I have a lot of different movements on my pitch. I don't do anything different that I can feel."