Lester Cotton,Cam Robinson

FILE - In this Sept. 3, 2016, file photo, Alabama offensive lineman Lester Cotton (66) and offensive lineman Cam Robinson (74) line up against Southern California during an NCAA college football game in Arlington, Texas. Robinson was selected to the 2016 AP All-America college football team, Monday, Dec. 12, 2016. (AP Photo/Tony Gutierrez, File)

(Tony Gutierrez)

The 2017 NFL draft is less than one month away.

Leading up to the start of the draft on April 27, the Buffalo Bills will host 30 prospects on pre-draft visits and hold private workouts with other draft eligible players.

NYup.com will keep this list updated on prospects that the Bills are showing interest in leading up to the draft.

Pre-draft visitors

Nyeem Wartman-White, LB, Penn State (Reported by Josh Reed)

Chad Kelly, QB, Ole Miss (Local pro day - Does not count toward top-30 visits)

Phillip (P.J.) Walker, QB, Temple (Reported by Aaron Wilson)

Marcus Sayles, CB, West Georgia (Reported by NFL Draft Diamonds)

Garett Bolles, OT, Utah (Reported by Adam Caplan)

Marlon Humphrey, CB, Alabama (Reported by Ian Rapoport)

Nathan Peterman, QB, Pitt (Reported by Adam Caplan)

Chad Williams, WR, Grambling State (Reported by Rapoport)

Tedric Thompson, S, Colorado (Reported by Rapoport)

Grover Stewart, DT, Albany State (Reported by Tony Pauline)

Nate Hairston, CB, Temple (Reported by Sal Capaccio)

Cam Robinson, OT, Alabama (Reported by Rapoport)

Derek Rivers, DE, Youngstown St. (Reported by NFL Draft Diamonds)

Rivers confirmed the original report by NFL Draft Diamonds. He'll be traveling to Buffalo on April 11.

The small-school pass-rusher was dominant in his career with Youngstown St. This year, Rivers recorded 58 tackles, 19.5 tackles for loss and 14 sacks. He finished his career at Youngstown St. with 37.5 career sacks and 56.5 tackles for loss.

Tim Williams, EDGE, Alabama (Reported by NFL Draft Diamonds)

Williams is a talented player, but he has some red flags. He admitted to failing several drug tests during his time with the Crimson Tide and was once arrested on a gun charge in September of 2016. Williams has the ability to develop into a solid pass rusher in the NFL.

Private workouts

Marquell Lee, LB, Wake Forest (Reported by Aaron Wilson)

Josh Harvey-Clemons, S, Louisville (Reported by Wilson)

Ryan Radke, WR, Thiel (Local pro day)

Cameron Johnston, P, Ohio State (Reported by NFL Draft Diamonds)

Tre' Sullivan, DB, Shepherd (Reported by NFL Draft Diamonds)

Tyler Scalzi, TE, Texas Tech (Reported by Houston Chronicle)

Luke Stice, FB, Houston (Reported by Houston Chronicle)

Scalzi and Stice both caught passes for Patrick Mahomes in his private workout with Buffalo.

Jordan Morgan, OL, Kutztown (Reported by Tony Pauline)

DeShone Kizer, QB, Notre Dame (Reported by Tom Pelissero)

Mitchell Trubisky, QB, North Carolina (Reported by Mike Garafolo)

Brad Seaton, OT, Villanova (Reported by Aaron Wilson)

Seaton is viewed as a late round prospect. He registered 30 consecutive starts during his time at Villanova. Seaton is close to 6-feet-9-inches tall and weighs 330 pounds.

Brandon Barnes, TE, Alabama State (Reported by Pauline)

Patrick Mahomes, QB, Texas Tech (Reported by Ian Rapoport)