The MLB issued a new policy in an effort to eliminate pitchers from using foreign substances on baseballs after much controversy and turmoil in recent weeks. The move was met with much criticism, with Tampa Bay Rays ace Tyler Glasnow leading the charge and voicing his frustrations over the rule change.

Yeah, Glasnow definitely isn't happy and issued more comments on the MLB's new policy.

Glasnow even mentioned that his injury could very well be related to the change. After all, these pitchers have gone for months– and in some cases, years– throwing a certain way just to have the rule changed midseason.

I just threw 80-something innings, and then you just told me I can’t use anything in the middle of the year?” he said. “I have to change everything I’ve been doing the entire season. Everything out of the window, I had to start doing something completely new,” via The Athletic. 

As if that weren't enough, MLB superagent Scott Boras issued his statement, according to Ken Rosenthal of The Athletic.

And, of course, Los Angeles Dodgers pitcher Trevor Bauer released a Vlog on the substance policy, demonstrating some of the sticky substances in light of the MLB and the new rule.

So, all in all, there are a lot of unhappy campers with the MLB's new policy, not just Bauer, Boras, and Glasnow, and commissioner Rob Manfred will definitely have to answer a lot of questions about the abrupt change in the middle of the season.

The MLB will certainly see it through for the rest of the season unless Manfred and Co. get hit too hard with criticism. This will definitely be a situation to monitor going forward. It will be something to watch as the MLB has decided to suspend any pitcher caught using such substances and only time will tell what Manfred and the league decide to do regarding this.