What are "Regs"?

I've seen term term often but I don't know exactly what it refers to.  Would someone please explain exactly what "Regs" refers to as opposed to MUT?  Thanks in advance for answers.

It's just online h2h using real team rosters. "Regs" regular.

What a regular. Not knowing what regs are. SMH.

bigjon24 said:

It's just online h2h using real team rosters. "Regs" regular.

I was prompted to ask the question because of a comment in the QB  release times list --"Another change this year is that MUT release times are faster than Regs."  H2H is part of MUT,  so if all that "Regs" means is H2H then that comment doesn't make much sense, so I'm trying to get clarification on the author's distinction between MUT and "Regs."

It's not mut. It's h2h that's not mut. It's h2h using regular team rosters. I don't know how else to explain it man, sorry.

bigjon24 said:

It's not mut. It's h2h that's not mut. It's h2h using regular team rosters. I don't know how else to explain it man, sorry.

I'm not saying that H2H is the entirety of MUT, but it certainly seems to be part of it.  When you go into Madden Ultimate Team (MUT), you can choose from Challenges, Solo Battles,  H2H, etc.  So, if H2H is part of MUT, I'm still puzzled by comments that draw a distinction between MUT and "Regs."  It's obviously not that important an issue.  But, as a casual player who often doesn't  have time to figure all of the game out, I tend to ask about things that seem unclear to me.