Tampa Bay Rays ace Tyler Glasnow blamed the MLB's crackdown on foreign substances for his arm injury.
MLB will enhance its enforcement of the rules that prohibit applying foreign substances to baseballs, with pitchers subjected to random checks and could face ejections, fines and suspensions of 10 games, starting June 21.
Glasnow was diagnosed with a partially torn ulnar collateral ligament (UCL) and a flexor tendon strain after exiting the Rays' 5-2 win over the Chicago White Sox on Monday.
Placed on the 10-day injured list, Glasnow is facing a lengthy stint on the sidelines and the 27-year-old pitcher vented his frustration on Tuesday.
"I switched my fastball grip and my curveball grip," Glasnow said during an animated conference call with reporters. "I had to put my fastball deeper into my hand and grip it way harder. Instead of holding my curveball at the tip of my fingers, I had to dig it deeper into my hand.
"I'm choking the s*** out of all my pitches."
"In my mind that sounds dumb," Glasnow said. "That sounds like an excuse a player would use to make sure he could use sticky stuff. I threw to the [Washington] Nationals ... I did well. I woke up the next day and I was sore in places I didn't even know I had muscles in."
In 2021, Glasnow has an ERA of 2.66 with 123 strikeouts – second only to Shane Bieber (130) – and a 0.93 WHIP.
"Waking up after that start, I was like, 'This sucks,'" Glasnow recalled. "Something is weird here. That same feeling is persisting all week long. I go into my start [Monday] and that same feeling [is there], it pops or whatever the hell happened to my elbow. I feel it. Something happened.
"Do it in the offseason. Give us a chance to adjust to it. But I just threw 80 innings, then you tell me I can't use anything in the middle of the year. I have to change everything I've been doing the entire season. I'm telling you I truly believe that's why I got hurt."
"That's out of the window," he said of his old grips. "I have to develop something where I can't hold the ball light anymore. I have to dig it deep into my hand. I'm taking a fastball and squeezing it twice as hard.
"Me throwing 100 mph and being [six-foot-seven] is why I got hurt, but that contributed. I'm frustrated that they don't understand how hard it is to pitch, and to tell us to do something completely different in the middle of the season is insane. It's ridiculous."
"Sunscreen and rosin is apparently the same as Spider Tack," Glasnow said. "All right, I guess I'll adapt and learn. And the only thing I learned was that it hurts to throw a ball in the middle of the season from having something to not having something."
"I'm sitting here, my lifelong dream. I want to go out and win a Cy Young," he said. "I want to be an All-Star and now it's s*** on. Now it's over. Now I have to rehab and try to get back in the playoffs. I'm clearly frustrated."