Reds' Nick Castellanos: MLB 'doesn't care' about pitchers using foreign substances

Cincinnati Reds outfielder Nick Castellanos has had a few run-ins with Major League Baseball, to say the least. 

He criticized MLB for his suspension earlier in the season and more recently called out the league for ignoring pitchers using foreign substances to increase their spin rate during an appearance on the "Chris Rose Rotation" podcast.

Via USA Today's Bob Nightengale:

"Is it illegal or is not illegal to put stuff on a ball?" Castellanos said. "It's illegal. The league obviously knows that they are doing it, but the league doesn't care. They don't care because if it was really a problem that they wanted, they would put people in the bullpen to check gloves, to check hats, whatever. The league would do something about it. But honestly, I don't think it's that important to them."

Pitchers using foreign substances and baseball's lack of discipline regarding the issue have become hot topics around MLB with averages and runs down across the board. The league's .236 batting average currently ranks lowest in history. 

The use of foreign substances has risen across baseball in recent years. Los Angeles Dodgers ace Trevor Bauer was reportedly under investigation for doctoring baseballs in April, and St. Louis Cardinals reliever Giovanny Gallegos had his hat confiscated last month over concern that it was covered in a foreign substance. 

Four minor league pitchers were recently suspended for doctoring balls, but such punishment is rarely handed down to major leaguers for doing the same thing.