It seems like every year undrafted NFL rookies pop out of nowhere to (a) make NFL rosters and (b) thrive. Last year it was Phillip Lindsay, the year before it was Austin Ekeler, and in 2016 it was Robby Anderson. Now in 2019, there are ten (and more) offensive undrafted free agents that may follow suit.

Stanley Morgan Jr. – WR, Cincinnati Bengals

Stanley Morgan Jr. got a boost in his stock to make the Cincinnati Bengals roster this past week. Following the injuries to both A.J. Brown and John Ross, he's expected to see an uptick in snaps with the second-team offense, and for good reason.

Though not particularly athletic or big (6-foot), Morgan has an all-around game that's refined and smooth to the touch. The former Cornhusker knows how to win with leverage, ball skills, and physicality across mid-field. He recorded 131 catches for 1,990 yards and 17 touchdowns in his final two years at Nebraska and is the school's all-time leader in receiving yardage.

Karan Higdon – RB, Houston Texans

The Houston Texans could use a boost to their backfield led by Lamar Miller and D'Onta Foreman. Karan Higdon, hailing from Michigan, is just that. In a span of two seasons, Higdon led the Wolverines in rushing with 2,172 yards and 21 touchdowns. Now in the NFL, he brings a skillset the Texans need.

Though undersized as a power back (5-foot-9, 206-pounds), he's one in every sense of the word. He runs downhill nose first with a low pad-level, he finishes tough, and he has the vision to improvise. But, he also has enough speed and explosiveness to break away. Considering the Texans run an inside rushing attack, Higdon is a good fit.

Tyree Jackson – QB, Buffalo Bills

Like most on this list, Tyree Jackson should've been drafted. That's emphasized more factoring in multiple middle-round grades, a tall stature (6-foot-7), athleticism, and a booming arm. But, he didn't. Instead, he continued his play in Buffalo (former Buffalo Bull) to contend for the backup job to Josh Allen.

Jackson is raw, but he has a lot of good things going for him. Twenty years ago, he might've gotten taken closer to the second. He checks all the prototypical boxes off, including height, weight, arm strength, and highlight-reel ability. But, his accuracy and mechanics are flawed. Nonetheless, if the Bills carry three quarterbacks, Jackson is an ideal future backup to Allen.

Dax Raymond – TE, Chicago Bears

Dax Raymond is the epitome of a high-ceiling, low-floor undrafted pickup. He's an athlete for his size (6-foot-5, 255-pounds), he can threaten seams with speed alone, and he isn't exactly easy to tackle in the open field. But, he's about as raw as they come for a tight end, as his route-running, blocking mechanics, and ball skills all need work.

However, the Chicago Bears aren't one to be picky about their tight ends. While Trey Burton is a good TE1, the group behind him is shoddy — especially considering Adam Shaheen's recent injury. The Bears may take in more tight ends than expected in an attempt to find viable backup options; Raymond shouldn't be looked over while doing so.

Emanuel Hall – WR, Chicago Bears

To this day, I wonder how Emanuel Hall didn't get drafted. He was considered as a second or third-round talent pre-draft and somehow was passed over 254 times despite a fantastic size to speed ratio (6-foot-2, 201-pounds, 4.39 second 40-time), a career average of 20.8 yards per catch, and a silky smooth release. Scouts must've seen a shorter route-tree as a reason to pass.

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Luckily, Hall might've found a perfect home in Matt Nagy's offense that prioritizes speed from receivers. The Bears have been searching for young speedsters to take hold of starting jobs eventually. Hall is speed. However, he's currently missed most of training camp due to a lingering injury. Expect, at minimum, Hall to be an IR stash, as his potential is too great to pass.

Bruce Anderson – RB, Tampa Bay Buccaneers

Good running backs are supposed to dominate weaker competition, that's just what Bruce Anderson did at North Dakota State. For four years, Anderson helped the Bison in every facet; whether it be running the ball, receiving, or returning kicks. In his final year, he recorded 924 yards and nine touchdowns on 7.5 yards per carry.

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The 5-foot-11 Anderson expected to be at the NFL Combine, but he wasn't invited. However, the Tampa Bay Buccaneers should be able to use his services — they are in desperate need for a go-to back and may look everyone to find one. Anderson may be that; he's a slippery runner with excellent foot-balance, acceleration, explosiveness, and sneaky-good receiving skills to boot.

Antoine Wesley – WR, Baltimore Ravens

Antoine Wesley started just one year with the Texas Tech Red Raiders, but it was enough for him to put up 1,410 yards and nine touchdowns. He has impressed the Baltimore Ravens early in training camp according to The Athletic's Jeff Zrebiec.

Harbaugh said a lot of the DBs have told him how impressed they are with UDFA WR Antoine Wesley who has been making plays since rookie minicamp.

Though he has limited production to his name, that shouldn't be a fluke. He's 6-foot-4 with a 37-inch vertical on his resume, making Wesley an obvious jump-ball ace. He also has a bit of wiggle in his route-running and makes sure he comes down with the ball more often than not.

Considering the Ravens' lack of depth at receiver, Wesley is a good bet to make the roster.

Tyler Roemer – LT, Oakland Raiders

Tyler Roemer is a developmental project. He was an early entrant into the draft due to a suspension at San Diego State, and his game is far from equipped to handle NFL pass-rushers. But, despite his knocks, there is hope for him as he stands at an NFL-ready 6-foot-6 and 312 pounds.

Roemer is an athlete for his size — recording a 30.5-inch vertical and 108-inch broad jump at the NFL Combine — and has good traits to build upon. He plays with power, and physicality isn't a weakness. For the Oakland Raiders, Roemer stands as a project, but he's a good one if they can beef up his strength, add finesse, and improve his maturity.

Preston Williams – WR, Miami Dolphins

Preston Williams has all the tools. He's 6-foot-4, has a galore of ideal physical traits, is a smooth route-runner, knows how to beat a press, and is rather quick for his size. But, he bombed his pro-day, has maturity issues off the field, and all too often had lapses of judgment on it.

But, you'd be hard-pressed to view Williams as anything but an intriguing undrafted prospect. His tape indicates a player worth drafting; he does it all, and then some. Obviously, that didn't happen. However, the former Tennessee Vol and Colorado State Ram may have found a nice home with the Miami Dolphins where he can develop consistency into his game and mature.

Emmanuel Butler – WR, New Orleans Saints

Emmanuel Butler wasn't supposed to be the undrafted receiver to make headlines with the New Orleans Saints — that goes to Lil'Jordan Humphrey. But he has, as he's made plays consistently during training camp. Telling reporters after Sunday practice, Sean Payton, according to Nola.com's Amie Just, said he's “excited” by Butler and called him “intriguing.”

[Butler is] somebody we’ve noticed.

(That's on Marshon Lattimore)

Not a particular fast receiver, Butler checks the size and leaping abilities off the box. He measures in at 6-foot-3, 217-pounds, and he recorded a 36-inch vertical at the NFL Combine. The Northern Arizona product put on a show in 2016 (1,003 yards and nine touchdowns), then faltered the next two seasons due to a shoulder injury. But, that appears to be behind him with the Saints as he practiced with the first-team amid Michael Thomas contract talks.