The Cleveland Browns are sure to select a quarterback with the first pick in tonight's NFL Draft, and according to ESPN's Adam Schefter there is a "mounting belief" among head coaches and general managers around the league that reigning Heisman Trophy winner Baker Mayfield will be the selection.

Last season with the Oklahoma Sooners, Mayfield completed 70.5% of his passes for 4,627 yards, 43 touchdowns and just six interceptions. 

Earlier in the week, ESPN's Todd McShay reported that his sources were telling him the Browns were deciding between Wyoming's Josh Allen and USC's Sam Darnold at #1.

"I've heard from GMs further down the board that they've heard the pick at No. 1 will be QB Josh Allen, but they're not sure. The majority of reactions I've received are some form of: "I keep hearing Allen, and I'm surprised." It will be either Allen or Sam Darnold at No. 1," writes McShay.

However, Mary Kay Cabot of reported on Wednesday that Cleveland had narrowed their decision to either Allen or Mayfield. Obviously, it's a fluid situation and we likely won't know for sure until tonight's NFL Draft, which kicks off at 8:00pm ET. 

The Browns also own the fourth overall pick in tonight's draft.