Peyton Manning disses Trevor Siemian's hair, email address

Trevor Siemian has done a lot of things right this preseason. He's played well in games and performed well in practice for the Denver Broncos. He's recovered from the knee injury that ended his Northwestern career a game and a half early. He's beaten out Zac Dysert for the third-string job.

He's also done some things wrong. Well, at least according to NFL legend Peyton Manning.

Per Manning, Siemian has two major problems:

1. He's got a "borderline mullet."

Manning:

"All of the rookies got their heads shaved by our 'senior committee.' It's kind of a defensive thing—that's the one time they're allowed to cross over the ball. Ty [Sambrailo] had long hair when he got here and they cut our left tackles hair. But, for three years in a row now I have spared the QB's. I spared Brock [Osweiler], I spared [Zac] Dysert and I spared Trevor. But I told Trevor, 'Just because I spared you from getting your head shaved doesn't mean... you still need a haircut.' He's got a bad haircut. It's borderline mullet at this point.

"So I said, 'Don't take advantage of my generosity...get a haircut. Represent the QB's. Look sharp.' He hasn't done it yet."

2. He still uses his u.northwestern.edu email address

Manning:

"The other thing is he still has his college email address. I do not feel secure on that. Some student could be reading all of our emails at Northwestern. I told him, 'Get an AOL, get a Gmail... do something.' I do not want to send an email to Northwestern dot org or whatever.

Here's Manning's full quote when asked about Siemian:

"Trevor has had a really good camp. He's a bright guy; he's improved. He wasn't healthy when he got here because he was coming off a knee injury. So he wasn't able to do a lot in his first month, but as he got healthy and was able to get out on the field and get the reps it really paid dividends for him. He got more comfortable and just played well throughout camp.

"I don't know if you noticed, but all of the rookies got their heads shaved by our 'senior committee.' It's kind of a defensive thing—that's the one time they're allowed to cross over the ball. Ty [Sambrailo] had long hair when he got here and they cut our left tackles hair. But, for three years in a row now I have spared the QB's. I spared Brock [Osweiler], I spared [Zac] Dysert and I spared Trevor. But I told Trevor, 'Just because I spared you from getting your head shaved doesn't mean... you still need a haircut.' He's got a bad haircut. It's borderline mullet at this point.

"So I said, 'Don't take advantage of my generosity...get a haircut. Represent the QB's. Look sharp.' He hasn't done it yet.

"The other thing is he still has his college email address. I do not feel secure on that. Some student could be reading all of our emails at Northwestern. I told him, 'Get an AOL, get a Gmail... do something.' I do not want to send an email to Northwestern dot org or whatever.

"When you get to pro ball, you can't wear your bowl gear from the Peach Bowl. You can't wear your combine sweatshirt, (which reads) 'QB 10,' and you cannot have your college email. You stick to those three things and everything else is cream cheese."

C'mon Trev. Get it together.